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Round|Lab Grown|IGI

2.51ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG532262915

Shape and cutting style on the report: Round brilliant

Certificate IGI LG532262915

Diamond specifications and retailer prices

From $465 USD
As of November 1, 2026
Save $2,575 USD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,040 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG532262915 or 532262915. Listed at 14 retailers as of October 31, 2026, with prices from $465 to $3,040, a $2,575 spread on the same certified stone. Brilliant Earth lists it at $3,040. 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

2.51
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532262915
Dimensions8.59 × 8.56 × 5.43 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.59 mm8.56 mm2.51 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532262915
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.4%

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 1
Current: $3,040 USD|Low: $446 USD|High: $3,140 USD|Avg: $1,145 USD|-3.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$465 USD
Retailer 3$521 USD
Retailer 8$577 USD
Retailer 10$577 USD
Retailer 5$720 USD
Retailer 11$852 USD
Retailer 9$902 USD
Retailer 4$945 USD
Retailer 6$1,550 USD
Retailer 2$2,118 USD
Brilliant Earth$3,040 USD

42 data points across 11 retailers

14 retailers$465 USD to $3,040 USD

A
Cheapest Retailer
-
$465 USD
A
Retailer 2
-
$521 USD
View
Final sale: no returns
A
Retailer 3
-
$521 USD
View
Retailer 4
-
$577 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$577 USD
View
B+
Retailer 6
-
$720 USD
View
B+
Retailer 7
-
$852 USD
View
B+
Retailer 8
-
$902 USD
View
B+
Retailer 9
-
$945 USD
£744 GBP
View
B
Retailer 10
-
$1,536 USD
HK$12,000 HKD
View
B
Retailer 11
-
$1,550 USD
View
B
Retailer 12
-
$1,854 USD
View
B
Retailer 13
-
$2,118 USD
£1,668 GBP
View
Most Expensive
B
Brilliant Earth
17979112A · Oct 31
$3,040 USD
View
13 more retailers have this diamond
Prices start from $465 USDSave up to $2,575 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
2.51ct Round
$465 USD