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Marquise|Lab Grown|IGI

0.51ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG831629028

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831629028

Diamond specifications and retailer prices

From HK$2,377 HKD
As of November 4, 2026
Save HK$9,877 HKD (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$12,254 HKD at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831629028 or 831629028. Listed at 21 retailers as of November 4, 2026, with prices from HK$2,377 to HK$12,254, a HK$9,877 spread on the same certified stone. Riddles Jewelry lists it at HK$12,254. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831629028
Dimensions8.39 × 4.15 × 2.56 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.39 mm4.15 mm0.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831629028
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.7%

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 4
Current: HK$5,178 HKD|Low: HK$2,283 HKD|High: HK$11,940 HKD|Avg: HK$5,507 HKD|+2.2%
Retailer 1
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 5, 2026
Retailer 13HK$2,377 HKD
Retailer 2HK$2,754 HKD
Retailer 5HK$2,918 HKD
Retailer 3HK$2,950 HKD
Retailer 14HK$2,950 HKD
Retailer 4HK$4,252 HKD
Retailer 10HK$4,597 HKD
Retailer 12HK$4,691 HKD
Retailer 11HK$4,966 HKD
Retailer 1HK$5,178 HKD
Retailer 9HK$5,343 HKD
Retailer 6HK$6,284 HKD
Retailer 15HK$9,469 HKD
Retailer 8HK$11,776 HKD
Retailer 7HK$11,933 HKD

45 data points across 15 retailers

21 retailersHK$2,377 HKD to HK$12,254 HKD

A
Cheapest Retailer
-
HK$2,377 HKD
A
Retailer 2
-
HK$2,754 HKD
View
Retailer 3
-
HK$2,911 HKD
View
Price last confirmed 41 days ago
A
Retailer 4
-
HK$2,918 HKD
View
Final sale: no returns
Retailer 5
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HK$2,950 HKD
View
Price last confirmed 11 days ago
A
Retailer 6
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HK$2,950 HKD
View
A
Retailer 7
-
HK$3,107 HKD
View
B+
Retailer 8
-
HK$4,252 HKD
View
Retailer 9
-
HK$4,597 HKD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
HK$4,691 HKD
View
B+
Retailer 11
-
HK$4,966 HKD
View
B+
Retailer 12
-
HK$5,178 HKD
View
B+
Retailer 13
-
HK$5,343 HKD
View
B
Retailer 14
-
HK$6,284 HKD
View
B
Retailer 15
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HK$9,469 HKD
View
B
Retailer 16
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HK$9,838 HKD
View
B
Retailer 17
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HK$10,379 HKD
View
B
Retailer 18
-
HK$10,544 HKD
View
B
Retailer 19
-
HK$11,776 HKD
View
B
Retailer 20
-
HK$11,933 HKD
View
Most Expensive
B
Riddles Jewelry
1978578181 · Nov 4
HK$12,254 HKD
$1,562 USD
View
20 more retailers have this diamond
Prices start from HK$2,377 HKDSave up to HK$9,877 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$2,377 HKD