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Round|Lab Grown|IGI

3.10ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG666443721

Shape and cutting style on the report: Round brilliant

Certificate IGI LG666443721

Diamond specifications and retailer prices

From €326 EUR
As of November 5, 2026
Save €1,621 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,947 EUR at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 3.1ct lab-grown round diamond

This 3.1ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG666443721 or 666443721. Listed at 15 retailers as of November 4, 2026, with prices from €326 to €1,947, a €1,621 spread on the same certified stone. Rare Carat lists it at €1,947. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.10
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG666443721
Dimensions9.37 × 9.40 × 5.77 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.37 mm9.40 mm3.10 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG666443721
Side View
Table 56.0%Crown 34.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €1,947 EUR|Low: €326 EUR|High: €4,075 EUR|Avg: €1,187 EUR|-11.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 13€326 EUR
Retailer 7€379 EUR
Retailer 6€404 EUR
Retailer 17€445 EUR
Retailer 2€536 EUR
Retailer 14€539 EUR
Retailer 15€645 EUR
Retailer 4€647 EUR
Retailer 16€687 EUR
Retailer 11€721 EUR
Retailer 3€1,001 EUR
Retailer 12€1,187 EUR
Retailer 5€1,301 EUR
Retailer 10€1,576 EUR
Rare Carat€1,947 EUR
Retailer 9€3,154 EUR
Retailer 8€4,075 EUR

10 data points across 17 retailers

15 retailers€326 EUR to €1,947 EUR

A
Cheapest Retailer
-
€326 EUR
A
Retailer 2
-
€379 EUR
View
A
Retailer 3
-
€404 EUR
View
A
Retailer 4
-
€445 EUR
View
A
Retailer 5
-
€536 EUR
View
A
Retailer 6
-
€539 EUR
View
Retailer 7
-
€645 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€647 EUR
View
A
Retailer 9
-
€687 EUR
View
A
Retailer 10
-
€721 EUR
View
B+
Retailer 11
-
€1,001 EUR
View
B+
Retailer 12
-
€1,187 EUR
View
B
Retailer 13
-
€1,301 EUR
View
B
Retailer 14
-
€1,576 EUR
View
Most Expensive
B
Rare Carat
KI7214437KF666 · Nov 4
€1,947 EUR
$2,185 USD
View
14 more retailers have this diamond
Prices start from €326 EURSave up to €1,621 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.10ct Round
€326 EUR