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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 HK$706 HKD
$90 USD
As of October 30, 2026
Save HK$5,701 HKD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$6,407 HKD 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 HK$706 to HK$6,407, a HK$5,701 spread on the same certified stone. MOH London lists it at HK$6,407. 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: HK$6,407 HKD|Low: HK$706 HKD|High: HK$6,636 HKD|Avg: HK$2,283 HKD|-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 12HK$706 HKD
Retailer 13HK$792 HKD
Retailer 9HK$816 HKD
Retailer 6HK$926 HKD
Retailer 3HK$1,193 HKD
Retailer 2HK$1,617 HKD
Retailer 8HK$1,648 HKD
Retailer 4HK$2,124 HKD
Retailer 5HK$2,508 HKD
Retailer 7HK$2,801 HKD
Retailer 10HK$3,123 HKD
Retailer 11HK$3,287 HKD
MOH LondonHK$6,407 HKD

8 data points across 13 retailers

14 retailersHK$706 HKD to HK$6,407 HKD

A
Cheapest Retailer
-
HK$706 HKD
$90 USD
A
Retailer 2
-
HK$792 HKD
$101 USD
View
Final sale: no returns
A
Retailer 3
-
HK$816 HKD
$104 USD
View
A
Retailer 4
-
HK$926 HKD
$118 USD
View
B+
Retailer 5
-
HK$1,193 HKD
$152 USD
View
A
Retailer 6
-
HK$1,617 HKD
£162 GBP
View
A
Retailer 7
-
HK$1,648 HKD
€200 EUR
View
A
Retailer 8
-
HK$2,124 HKD
£213 GBP
View
B+
Retailer 9
-
HK$2,508 HKD
SGD 432 SGD
View
B+
Retailer 10
-
HK$2,511 HKD
$320 USD
View
B+
Retailer 11
-
HK$2,801 HKD
$357 USD
View
B+
Retailer 12
-
HK$3,123 HKD
$398 USD
View
B+
Retailer 13
-
HK$3,287 HKD
$419 USD
View
Most Expensive
B
MOH London
LG843636772 · Nov 1
HK$6,407 HKD
£643 GBP
View
13 more retailers have this diamond
Prices start from HK$706 HKDSave up to HK$5,701 HKD

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
HK$706 HKD