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0.51ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG502108737

Shape and cutting style on the report: Round brilliant

Certificate IGI LG502108737

Diamond specifications and retailer prices

From HK$2,150 HKD
$274 USD
As of November 1, 2026
Save HK$8,611 HKD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$10,761 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG502108737 or 502108737. Listed at 11 retailers as of October 29, 2026, with prices from HK$2,150 to HK$10,761, a HK$8,611 spread on the same certified stone. MOH London lists it at HK$10,761. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG502108737
Dimensions5.19 × 5.17 × 3.14 mm
L/W Ratio1.00
Girdle conditionFaceted
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
5.19 mm5.17 mm0.51 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG502108737
Side View
Table 55.5%Crown 31.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.5%

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$10,761 HKD|Low: HK$1,726 HKD|High: HK$10,831 HKD|Avg: HK$4,359 HKD|-0.6%
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
Retailer 14
October 31, 2026
Retailer 8HK$2,150 HKD
Retailer 6HK$2,250 HKD
Retailer 13HK$2,409 HKD
Retailer 3HK$2,495 HKD
Retailer 9HK$2,511 HKD
Retailer 10HK$2,668 HKD
Retailer 12HK$2,668 HKD
Retailer 4HK$3,923 HKD
Retailer 11HK$4,425 HKD
Retailer 2HK$4,984 HKD
Retailer 5HK$5,437 HKD
Retailer 7HK$8,199 HKD
Retailer 14HK$8,583 HKD
MOH LondonHK$10,761 HKD

20 data points across 14 retailers

11 retailersHK$2,150 HKD to HK$10,761 HKD

A
Cheapest Retailer
-
HK$2,150 HKD
$274 USD
A
Retailer 2
-
HK$2,409 HKD
$307 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,495 HKD
$318 USD
View
A
Retailer 4
-
HK$2,511 HKD
$320 USD
View
Retailer 5
-
HK$2,668 HKD
$340 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
HK$2,668 HKD
$340 USD
View
B+
Retailer 7
-
HK$4,425 HKD
$564 USD
View
B+
Retailer 8
-
HK$4,984 HKD
€605 EUR
View
B
Retailer 9
-
HK$8,199 HKD
$1,045 USD
View
B
Retailer 10
-
HK$8,583 HKD
$1,094 USD
View
Most Expensive
B
MOH London
LG502108737 · Oct 29
HK$10,761 HKD
£1,080 GBP
View
10 more retailers have this diamond
Prices start from HK$2,150 HKDSave up to HK$8,611 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 Round
HK$2,150 HKD