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Round|Lab Grown|IGI

3.10ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG789606952

Shape and cutting style on the report: Round brilliant

Certificate IGI LG789606952

Diamond specifications and retailer prices

From $402 USD
As of November 5, 2026
Save $2,518 USD (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,920 USD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 LG789606952 or 789606952. Listed at 11 retailers as of November 5, 2026, with prices from $402 to $2,920, a $2,518 spread on the same certified stone. Brilliant Earth lists it at $2,920. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789606952
Dimensions9.51 × 9.47 × 5.61 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
9.51 mm9.47 mm3.10 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789606952
Side View
Table 61.0%Crown 32.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.1%

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: $2,920 USD|Low: $384 USD|High: $4,960 USD|Avg: $1,543 USD|-41.1%
Brilliant Earth
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
November 5, 2026
Retailer 10$402 USD
Retailer 8$451 USD
Retailer 2$662 USD
Retailer 11$763 USD
Retailer 4$817 USD
Retailer 3$859 USD
Retailer 13$1,334 USD
Retailer 12$1,335 USD
Retailer 7$1,604 USD
Retailer 5$1,646 USD
Retailer 6$1,693 USD
Retailer 14$1,924 USD
Retailer 9$1,944 USD
Brilliant Earth$2,920 USD

31 data points across 14 retailers

11 retailers$402 USD to $2,920 USD

A
Cheapest Retailer
-
$402 USD
A
Retailer 2
-
$451 USD
View
A
Retailer 3
-
$662 USD
View
Retailer 4
-
$763 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$859 USD
View
B+
Retailer 6
-
$1,334 USD
View
B
Retailer 7
-
$1,335 USD
View
B+
Retailer 8
-
$1,604 USD
View
Retailer 9
-
$1,924 USD
View
Price last confirmed 24 days ago
B
Retailer 10
-
$1,944 USD
View
Most Expensive
B
Brilliant Earth
20805177A · Nov 5
$2,920 USD
View
10 more retailers have this diamond
Prices start from $402 USDSave up to $2,518 USD

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
$402 USD