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Round|Lab Grown|IGI

0.51ct H IF Round Lab Grown Diamond

ID • H/IF • IGI LG639448988

Shape and cutting style on the report: Round brilliant

Certificate IGI LG639448988

Diamond specifications and retailer prices

From HK$934 HKD
As of November 1, 2026
Save HK$8,721 HKD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,655 HKD at MOH London · As of November 1, 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 H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG639448988 or 639448988. Listed at 16 retailers as of November 1, 2026, with prices from HK$934 to HK$9,655, a HK$8,721 spread on the same certified stone. MOH London lists it at HK$9,655. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
H
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639448988
Dimensions5.20 × 5.17 × 3.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.20 mm5.17 mm0.51 ctH / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG639448988
Side View
Table 60.0%Crown 36°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 59.7%

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: Nov 1
Current: HK$9,655 HKD|Low: HK$887 HKD|High: HK$9,774 HKD|Avg: HK$2,541 HKD|-1.1%
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
Retailer 15
November 3, 2026
Retailer 11HK$934 HKD
Retailer 4HK$1,043 HKD
Retailer 10HK$1,083 HKD
Retailer 14HK$1,232 HKD
Retailer 15HK$1,232 HKD
Retailer 6HK$1,569 HKD
Retailer 13HK$1,647 HKD
Retailer 8HK$2,095 HKD
Retailer 12HK$2,259 HKD
Retailer 3HK$2,801 HKD
Retailer 5HK$2,950 HKD
Retailer 2HK$3,060 HKD
Retailer 7HK$3,413 HKD
Retailer 9HK$3,719 HKD
MOH LondonHK$9,655 HKD

27 data points across 15 retailers

16 retailersHK$934 HKD to HK$9,655 HKD

A
Cheapest Retailer
-
HK$934 HKD
A
Retailer 2
-
HK$1,083 HKD
View
Retailer 3
-
HK$1,232 HKD
View
Price last confirmed 11 days ago
Retailer 4
-
HK$1,232 HKD
View
Price last confirmed 9 days ago
A
Retailer 5
-
HK$1,569 HKD
View
A
Retailer 6
-
HK$1,647 HKD
View
A
Retailer 7
-
HK$2,095 HKD
View
A
Retailer 8
-
HK$2,259 HKD
View
A
Retailer 9
-
HK$2,801 HKD
View
A
Retailer 10
-
HK$2,824 HKD
View
B+
Retailer 11
-
HK$2,950 HKD
View
A
Retailer 12
-
HK$3,060 HKD
View
B+
Retailer 13
-
HK$3,483 HKD
View
B+
Retailer 14
-
HK$3,719 HKD
View
B+
Retailer 15
-
HK$4,166 HKD
View
Most Expensive
B
MOH London
LG639448988 · Nov 1
HK$9,655 HKD
£969 GBP
View
15 more retailers have this diamond
Prices start from HK$934 HKDSave up to HK$8,721 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$934 HKD