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3.10ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG691590668

Shape and cutting style on the report: Round brilliant

Certificate IGI LG691590668

Diamond specifications and retailer prices

From $749 NZD
As of November 5, 2026
Save $4,090 NZD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,839 NZD 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG691590668 or 691590668. Listed at 15 retailers as of November 5, 2026, with prices from $749 to $4,839, a $4,090 spread on the same certified stone. Brilliant Earth lists it at $4,839. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691590668
Dimensions9.40 × 9.36 × 5.75 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
9.40 mm9.36 mm3.10 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691590668
Side View
Table 58.0%Crown 33.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
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: $4,839 NZD|Low: $719 NZD|High: $6,920 NZD|Avg: $1,995 NZD|-30.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 8$749 NZD
Retailer 3$929 NZD
Retailer 9$929 NZD
Retailer 10$1,245 NZD
Retailer 6$1,480 NZD
Retailer 4$1,510 NZD
Retailer 11$1,603 NZD
Retailer 7$2,183 NZD
Retailer 5$2,606 NZD
Retailer 2$3,401 NZD
Brilliant Earth$4,839 NZD

44 data points across 11 retailers

15 retailers$749 NZD to $4,839 NZD

A
Cheapest Retailer
-
$749 NZD
A
Retailer 2
-
$840 NZD
View
Retailer 3
-
$929 NZD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$929 NZD
View
B+
Retailer 5
-
$1,245 NZD
View
A
Retailer 6
-
$1,480 NZD
View
A
Retailer 7
-
$1,510 NZD
View
A
Retailer 8
-
$1,603 NZD
View
B+
Retailer 9
-
$2,007 NZD
View
B+
Retailer 10
-
$2,183 NZD
View
B+
Retailer 11
-
$2,256 NZD
View
B
Retailer 12
-
$2,606 NZD
View
B
Retailer 13
-
$2,985 NZD
View
B
Retailer 14
-
$3,401 NZD
View
Most Expensive
B
Brilliant Earth
13678752A · Nov 5
$4,839 NZD
$2,720 USD
View
14 more retailers have this diamond
Prices start from $749 NZDSave up to $4,090 NZD

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
$749 NZD