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Radiant|Lab Grown|IGI

0.51ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG762555331

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

Certificate IGI LG762555331

Diamond specifications and retailer prices

From HK$2,103 HKD
$268 USD
As of November 1, 2026
Save HK$6,745 HKD (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$8,848 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 LG762555331 or 762555331. Listed at 8 retailers as of November 1, 2026, with prices from HK$2,103 to HK$8,848, a HK$6,745 spread on the same certified stone. MOH London lists it at HK$8,848. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762555331
Dimensions5.71 × 4.02 × 2.59 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.71 mm4.02 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762555331
Side View
Table 68.0%Crown 40.3°Girdle: ThickPavilion 34.8°Culet: NoneDepth 64.4%

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: Nov 1
Current: HK$8,848 HKD|Low: HK$1,891 HKD|High: HK$8,948 HKD|Avg: HK$3,168 HKD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6HK$1,961 HKD
Retailer 7HK$2,103 HKD
Retailer 5HK$2,109 HKD
Retailer 2HK$2,115 HKD
Retailer 3HK$2,511 HKD
Retailer 4HK$2,557 HKD
Retailer 8HK$2,864 HKD
MOH LondonHK$8,848 HKD

42 data points across 8 retailers

8 retailersHK$2,103 HKD to HK$8,848 HKD

Retailer 1
-
HK$1,961 HKD
$250 USD
Price last confirmed 14 days ago
A
Retailer 2
-
HK$2,103 HKD
$268 USD
View
A
Retailer 3
-
HK$2,109 HKD
€256 EUR
View
A
Retailer 4
-
HK$2,115 HKD
£212 GBP
View
B+
Retailer 5
-
HK$2,511 HKD
$320 USD
View
B+
Retailer 6
-
HK$2,557 HKD
£257 GBP
View
B+
Retailer 7
-
HK$2,864 HKD
$365 USD
View
Most Expensive
B
MOH London
LG762555331 · Nov 1
HK$8,848 HKD
£888 GBP
View
7 more retailers have this diamond
Prices start from HK$2,103 HKDSave up to HK$6,745 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$2,103 HKD