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Oval|Lab Grown|IGI

2.51ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG843607238

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843607238

Diamond specifications and retailer prices

From $305 USD
As of October 29, 2026
Save $2,925 USD (91%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,230 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.51ct lab-grown oval diamond

This 2.51ct lab-grown oval sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG843607238 or 843607238. Listed at 18 retailers as of October 29, 2026, with prices from $305 to $3,230, a $2,925 spread on the same certified stone. Brilliant Earth lists it at $3,230. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843607238
Dimensions11.56 × 7.42 × 4.51 mm
L/W Ratio1.56
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.56 mm7.42 mm2.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843607238
Side View
Table 63.0%Crown 36.8°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.8%

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: Oct 29
Current: $3,230 USD|Low: $300 USD|High: $4,140 USD|Avg: $981 USD|-22.0%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 16$305 USD
Retailer 9$342 USD
Retailer 8$354 USD
Retailer 3$378 USD
Retailer 19$378 USD
Retailer 2$465 USD
Retailer 18$520 USD
Retailer 15$535 USD
Retailer 11$651 USD
Retailer 12$672 USD
Retailer 5$677 USD
Retailer 7$940 USD
Retailer 17$1,162 USD
Retailer 6$1,216 USD
Retailer 10$1,263 USD
Retailer 13$1,524 USD
Retailer 4$1,529 USD
Retailer 14$2,200 USD
Brilliant Earth$3,230 USD

26 data points across 19 retailers

18 retailers$305 USD to $3,230 USD

A
Cheapest Retailer
-
$305 USD
A
Retailer 2
-
$342 USD
View
Final sale: no returns
A
Retailer 3
-
$354 USD
View
A
Retailer 4
-
$378 USD
View
A
Retailer 5
-
$378 USD
View
A
Retailer 6
-
$465 USD
£366 GBP
View
B+
Retailer 7
-
$520 USD
View
A
Retailer 8
-
$535 USD
View
A
Retailer 9
-
$672 USD
£529 GBP
View
A
Retailer 10
-
$677 USD
View
B+
Retailer 11
-
$940 USD
View
B
Retailer 12
-
$1,162 USD
View
B+
Retailer 13
-
$1,216 USD
View
B+
Retailer 14
-
$1,263 USD
View
B
Retailer 15
-
$1,524 USD
£1,200 GBP
View
B
Retailer 16
-
$1,529 USD
View
B
Retailer 17
-
$2,200 USD
View
Most Expensive
B
Brilliant Earth
21699557A · Oct 30
$3,230 USD
View
17 more retailers have this diamond
Prices start from $305 USDSave up to $2,925 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 Oval
$305 USD