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Oval|Lab Grown|IGI

2.57ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG727505994

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG727505994

Diamond specifications and retailer prices

From $527 NZD
$297 USD
As of October 28, 2026
2 retailers carry this diamond
Most expensive: $4,291 NZD at Rare Carat
View at Rare Carat

About this 2.57ct lab-grown oval diamond

This 2.57ct lab-grown oval sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG727505994 or 727505994. Listed at 2 retailers as of October 28, 2026. 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

2.57
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727505994
Dimensions11.00 × 7.71 × 4.80 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Top View
11.00 mm7.71 mm2.57 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727505994
Side View
Table 61.0%Crown 34.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $527 NZD|Low: $520 NZD|High: $2,979 NZD|Avg: $1,481 NZD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 7, 2026
Retailer 1$527 NZD
Retailer 8$1,107 NZD
Retailer 2$1,239 NZD
Retailer 3$1,348 NZD
Retailer 7$1,357 NZD
Retailer 5$1,439 NZD
Retailer 6$1,508 NZD
Retailer 4$1,828 NZD
Retailer 9$2,979 NZD

2 data points across 9 retailers

2 retailers

A
Cheapest Retailer
-
$527 NZD
$297 USD
Final sale: no returns
Most Expensive
Rare Carat
727505994
$4,291 NZD
$2,418 USD
View
1 more retailer has this diamond
Prices start from $527 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
2.57ct Oval
$527 NZD