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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 $128 AUD
$90 USD
As of October 30, 2026
Save $1,037 AUD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,165 AUD 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 13 retailers as of October 30, 2026, with prices from $128 to $1,165, a $1,037 spread on the same certified stone. MOH London lists it at $1,165. 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

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 30
Current: $1,165 AUD|Low: $128 AUD|High: $1,207 AUD|Avg: $415 AUD|-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$128 AUD
Retailer 13$144 AUD
Retailer 9$148 AUD
Retailer 6$168 AUD
Retailer 3$217 AUD
Retailer 2$294 AUD
Retailer 8$300 AUD
Retailer 4$386 AUD
Retailer 5$456 AUD
Retailer 7$509 AUD
Retailer 10$568 AUD
Retailer 11$598 AUD
MOH London$1,165 AUD

8 data points across 13 retailers

13 retailers$128 AUD to $1,165 AUD

A
Cheapest Retailer
-
$128 AUD
$90 USD
A
Retailer 2
-
$148 AUD
$104 USD
View
A
Retailer 3
-
$168 AUD
$118 USD
View
B+
Retailer 4
-
$217 AUD
$152 USD
View
A
Retailer 5
-
$294 AUD
£162 GBP
View
A
Retailer 6
-
$300 AUD
€200 EUR
View
A
Retailer 7
-
$386 AUD
£213 GBP
View
B+
Retailer 8
-
$456 AUD
SGD 432 SGD
View
B+
Retailer 9
-
$457 AUD
$320 USD
View
B+
Retailer 10
-
$509 AUD
$357 USD
View
B+
Retailer 11
-
$568 AUD
$398 USD
View
B+
Retailer 12
-
$598 AUD
$419 USD
View
Most Expensive
B
MOH London
LG843636772 · Nov 1
$1,165 AUD
£643 GBP
View
12 more retailers have this diamond
Prices start from $128 AUDSave up to $1,037 AUD

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
$128 AUD