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Marquise|Lab Grown|IGI

0.51ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG800675315

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800675315

Diamond specifications and retailer prices

From HK$2,511 HKD
As of October 31, 2026
Save HK$2,573 HKD (51%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$6,806 HKD at MOH London · As of October 21, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800675315 or 800675315. Listed at 9 retailers as of October 31, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800675315
Dimensions7.99 × 4.22 × 2.67 mm
L/W Ratio1.89
Girdle conditionFaceted
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
7.99 mm4.22 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800675315
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.2°Culet: NoneDepth 63.3%

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 31
Current: HK$6,806 HKD|Low: HK$2,393 HKD|High: HK$6,855 HKD|Avg: HK$3,899 HKD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5HK$2,432 HKD
Retailer 3HK$2,511 HKD
Retailer 6HK$2,660 HKD
Retailer 7HK$2,675 HKD
Retailer 8HK$3,209 HKD
Retailer 2HK$4,315 HKD
Retailer 9HK$4,543 HKD
Retailer 4HK$5,045 HKD
Retailer 10HK$5,084 HKD
MOH LondonHK$6,806 HKD

41 data points across 10 retailers

9 retailersHK$2,511 HKD to HK$5,084 HKD

A
Cheapest Retailer
-
HK$2,511 HKD
A
Retailer 2
-
HK$2,660 HKD
View
A
Retailer 3
-
HK$2,675 HKD
View
A
Retailer 4
-
HK$3,209 HKD
View
B+
Retailer 5
-
HK$4,315 HKD
View
B+
Retailer 6
-
HK$4,637 HKD
View
Retailer 7
-
HK$5,045 HKD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$5,084 HKD
View
Most Expensive
MOH London
LG800675315 · Oct 21
HK$6,806 HKD
£683 GBP
View
Price last confirmed 14 days ago
8 more retailers have this diamond
Prices start from HK$2,511 HKDSave up to HK$2,573 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 Marquise
HK$2,511 HKD