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Radiant|Lab Grown|IGI

1.51ct I VVS2 Radiant Lab Grown Diamond

GD • I/VVS2 • IGI LG497172326

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG497172326

Diamond specifications and retailer prices

From $1,809 NZD
$1,020 USD
As of November 4, 2026
3 retailers carry this diamond
Most expensive: $1,809 NZD at Brilliant Earth
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI LG497172326 or 497172326. Listed at 3 retailers as of November 4, 2026. 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

1.51
Carat
I
Colour
VVS2
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
Crown angle46.6°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497172326
Dimensions7.69 × 5.65 × 3.96 mm
L/W Ratio1.36
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
7.69 mm5.65 mm1.51 ctI / VVS2
OriginLab Grown
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI LG497172326
Side View
Table 68.5%Crown 46.6°Girdle: MED-STKPavilion 36°Culet: NoneDepth 70.1%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 4
Current: $1,809 NZD|Low: $279 NZD|High: $2,909 NZD|Avg: $1,189 NZD|-17.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
August 19, 2026
Retailer 10$279 NZD
Retailer 8$534 NZD
Retailer 7$720 NZD
Retailer 9$747 NZD
Retailer 2$804 NZD
Retailer 3$1,171 NZD
Retailer 6$1,283 NZD
Retailer 12$1,423 NZD
Retailer 5$1,467 NZD
Retailer 11$1,590 NZD
Retailer 4$1,703 NZD
Brilliant Earth$1,809 NZD

68 data points across 12 retailers

3 retailers

Retailer 1
-
$1,467 NZD
Price last confirmed 80 days ago
Retailer 2
-
$1,481 NZD
View
Price last confirmed 88 days ago
Most Expensive
C
Brilliant Earth
14069875A · Nov 4
$1,809 NZD
$1,020 USD
View
2 more retailers have this diamond

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.

C
1.51ct Radiant
$1,809 NZD