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Radiant|Lab Grown|IGI

0.51ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG843636772

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

Certificate IGI LG843636772

Diamond specifications and retailer prices

From $160 NZD
$90 USD
As of October 30, 2026
Save $1,289 NZD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,449 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843636772 or 843636772. Listed at 14 retailers as of October 30, 2026, with prices from $160 to $1,449, a $1,289 spread on the same certified stone. MOH London lists it at $1,449. 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

0.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843636772
Dimensions5.60 × 3.98 × 2.70 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.60 mm3.98 mm0.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843636772
Side View
Table 64.0%Crown 34.7°Girdle: Slightly ThickPavilion 39.9°Culet: NoneDepth 67.8%

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 30
Current: $1,449 NZD|Low: $160 NZD|High: $1,501 NZD|Avg: $516 NZD|-3.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 12$160 NZD
Retailer 13$179 NZD
Retailer 9$185 NZD
Retailer 6$209 NZD
Retailer 3$270 NZD
Retailer 2$366 NZD
Retailer 8$373 NZD
Retailer 4$480 NZD
Retailer 5$567 NZD
Retailer 7$633 NZD
Retailer 10$706 NZD
Retailer 11$743 NZD
MOH London$1,449 NZD

8 data points across 13 retailers

14 retailers$160 NZD to $1,449 NZD

A
Cheapest Retailer
-
$160 NZD
$90 USD
A
Retailer 2
-
$179 NZD
$101 USD
View
Final sale: no returns
A
Retailer 3
-
$185 NZD
$104 USD
View
A
Retailer 4
-
$209 NZD
$118 USD
View
B+
Retailer 5
-
$270 NZD
$152 USD
View
A
Retailer 6
-
$366 NZD
£162 GBP
View
A
Retailer 7
-
$373 NZD
€200 EUR
View
A
Retailer 8
-
$480 NZD
£213 GBP
View
B+
Retailer 9
-
$567 NZD
SGD 432 SGD
View
B+
Retailer 10
-
$568 NZD
$320 USD
View
B+
Retailer 11
-
$633 NZD
$357 USD
View
B+
Retailer 12
-
$706 NZD
$398 USD
View
B+
Retailer 13
-
$743 NZD
$419 USD
View
Most Expensive
B
MOH London
LG843636772 · Nov 1
$1,449 NZD
£643 GBP
View
13 more retailers have this diamond
Prices start from $160 NZDSave up to $1,289 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
0.51ct Radiant
$160 NZD