Blue Lace is a type of chalcedony, a microcrystalline from the Quartz family.
Different types of Agate along with Amazonite, Serpentine and others were among artifacts found during Neolithic excavations, they had fashioned them into beads and other jewelry and were used as healing amulets and ornamentation dating back to Babylonian times. 
The ancient Greeks and Egyptians are also well documented to have used crystals as powerful healing and protection talismans. 
Blue Lace has a soothing and calming energy, it can help to neutralize feelings of anger and frustration and it is perfect for allowing us to communicate with truthful intent, it actives the throat chakra and lets us articulate with clarity and allow our voices to be heard while gently boosting our confidence around speaking up.
This can extend to public speaking, in situations where you need to be the diplomat, speaking to a class or on social media, when interviewing or any time you need to put yourself out there, it can also be used during therapy sessions or interpersonal relationships to aid with speaking without getting overwhelmed by emotions that might come up during difficult conversations or topics or that might at times lead to conflict if we get muddled with our words or meanings come across wrong, because of its harmonious energy it can have a positive impact on our tone and delivery and bring a feeling of unity to situations. 
Blue Lace Agate helps to bring a sense of peace and tranquility, its nurturing and supportive energy can help us through difficult, traumatic times and times of grief, loss and disappointment, it can bring hope back to our lives and because of its supportive and encouraging vibe, it can aid in bringing back stability and balance to our emotional, physical and spiritual bodies. 
When it comes to manifesting the life we would love, Blue Lace is revered as a fantastic tool, because we find ourselves in our truth and authenticity when it comes to the spoken word when using the stone, all we have to do is speak what we want out into the Universe, find optimism and positive thoughts around allowing what we want to enter our lives, then release the need to control how it turns up for us, Blue Lace vibrates on all the frequencies needed for successful manifestations.
Physically and Metaphysically Blue Lace is cleansing and purifying, it is said to help reduce infections, inflammation and fevers, including anything causing irritation.
It makes sense that Blue Lace would have positive implications for the throat, lymph nodes and thyroid with it being so closely linked to the throat chakra.
Size: 1.5cm
Disclaimer: please note, crystal healing while a more traditional and holistic approach is not a replacement for medical expertise and is to be used alongside other chosen remedies as an aid.