CaratHunter
Plans
Marquise|Lab Grown

0.51ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • FA2-128-257

Diamond specifications and retailer prices

From HK$3,119 HKD
As of November 6, 2026
Save HK$745 HKD (19%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$12,422 HKD at NZ Jewellers · As of November 6, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade. Listed at 4 retailers as of November 6, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateFA2-128-257
Dimensions8.50 × 4.16 × 2.47 mm
L/W Ratio2.04
Top View
8.50 mm4.16 mm0.51 ctF / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateFA2-128-257
Side View
Table 60.5%CrownGirdlePavilionCuletDepth 59.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$12,422 HKD|Low: HK$2,994 HKD|High: HK$12,422 HKD|Avg: HK$5,387 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2HK$3,119 HKD
Retailer 4HK$3,488 HKD
Retailer 3HK$3,864 HKD
NZ JewellersHK$12,422 HKD

6 data points across 4 retailers

4 retailersHK$3,119 HKD to HK$3,864 HKD

B
Cheapest Retailer
-
HK$3,119 HKD
B
Retailer 2
-
HK$3,488 HKD
View
C
Retailer 3
-
HK$3,864 HKD
View
Most Expensive
NZ Jewellers
ae389fc8-dca6-41bf-8532-49107369d24b · Nov 6
HK$12,422 HKD
$1,585 USD
View
Price under review
3 more retailers have this diamond
Prices start from HK$3,119 HKDSave up to HK$745 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$3,119 HKD