CaratHunter
Plans
Marquise|Lab Grown|UNKNOWN

0.51ct G VS2 Marquise Lab Grown Diamond

ID • G/VS2 • UNKNOWN 501491265

Certificate UNKNOWN 501491265

Diamond specifications and retailer prices

From HK$2,754 HKD
As of November 4, 2026
Save HK$2,730 HKD (50%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$10,991 HKD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by UNKNOWN 501491265. Listed at 5 retailers as of November 4, 2026, with a 99% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 501491265
Dimensions8.60 × 4.09 × 2.38 mm
L/W Ratio2.10
Top View
8.60 mm4.09 mm0.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 501491265
Side View
Table 62.6%CrownGirdlePavilionCuletDepth 58.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$10,991 HKD|Low: HK$2,644 HKD|High: HK$10,991 HKD|Avg: HK$4,944 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 8, 2026
Retailer 2HK$2,754 HKD
Retailer 5HK$3,201 HKD
Retailer 3HK$3,421 HKD
Retailer 4HK$5,484 HKD
NZ JewellersHK$10,991 HKD

6 data points across 5 retailers

5 retailersHK$2,754 HKD to HK$5,484 HKD

B+
Cheapest Retailer
-
HK$2,754 HKD
B
Retailer 2
-
HK$3,201 HKD
View
B
Retailer 3
-
HK$3,421 HKD
View
B
Retailer 4
-
HK$5,484 HKD
View
Most Expensive
NZ Jewellers
d8e2389a-e283-4678-98ac-f040df721411 · Nov 4
HK$10,991 HKD
$1,401 USD
View
Price under review
4 more retailers have this diamond
Prices start from HK$2,754 HKDSave up to HK$2,730 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.

B+
0.51ct Marquise
HK$2,754 HKD