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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 $541 NZD
$305 USD
As of October 29, 2026
Save $5,190 NZD (91%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,731 NZD 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 $541 to $5,731, a $5,190 spread on the same certified stone. Brilliant Earth lists it at $5,731. 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
Colour
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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $5,731 NZD|Low: $532 NZD|High: $7,346 NZD|Avg: $1,740 NZD|-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$541 NZD
Retailer 9$607 NZD
Retailer 8$628 NZD
Retailer 3$671 NZD
Retailer 19$671 NZD
Retailer 2$824 NZD
Retailer 18$923 NZD
Retailer 15$949 NZD
Retailer 11$1,155 NZD
Retailer 12$1,193 NZD
Retailer 5$1,201 NZD
Retailer 7$1,668 NZD
Retailer 17$2,062 NZD
Retailer 6$2,158 NZD
Retailer 10$2,241 NZD
Retailer 13$2,704 NZD
Retailer 4$2,713 NZD
Retailer 14$3,903 NZD
Brilliant Earth$5,731 NZD

26 data points across 19 retailers

18 retailers$541 NZD to $5,731 NZD

A
Cheapest Retailer
-
$541 NZD
$305 USD
A
Retailer 2
-
$607 NZD
$342 USD
View
Final sale: no returns
A
Retailer 3
-
$628 NZD
$354 USD
View
A
Retailer 4
-
$671 NZD
$378 USD
View
A
Retailer 5
-
$671 NZD
$378 USD
View
A
Retailer 6
-
$824 NZD
£366 GBP
View
B+
Retailer 7
-
$923 NZD
$520 USD
View
A
Retailer 8
-
$949 NZD
$535 USD
View
A
Retailer 9
-
$1,193 NZD
£529 GBP
View
A
Retailer 10
-
$1,201 NZD
$677 USD
View
B+
Retailer 11
-
$1,668 NZD
$940 USD
View
B
Retailer 12
-
$2,062 NZD
$1,162 USD
View
B+
Retailer 13
-
$2,158 NZD
$1,216 USD
View
B+
Retailer 14
-
$2,241 NZD
$1,263 USD
View
B
Retailer 15
-
$2,704 NZD
£1,200 GBP
View
B
Retailer 16
-
$2,713 NZD
$1,529 USD
View
B
Retailer 17
-
$3,903 NZD
$2,200 USD
View
Most Expensive
B
Brilliant Earth
21699557A · Oct 30
$5,731 NZD
$3,230 USD
View
17 more retailers have this diamond
Prices start from $541 NZDSave up to $5,190 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
2.51ct Oval
$541 NZD