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Marquise|Natural|GIA

0.51ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 3495552793

Certificate GIA 3495552793

Diamond specifications and retailer prices

From HK$3,845 HKD
$490 USD
As of November 1, 2026
Save HK$5,034 HKD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$14,735 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3495552793. Listed at 15 retailers as of November 1, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3495552793
Dimensions7.98 × 4.35 × 2.57 mm
L/W Ratio1.83
Top View
7.98 mm4.35 mm0.51 ctJ / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 3495552793
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 59.0%

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 1
Current: HK$14,735 HKD|Low: HK$3,845 HKD|High: HK$14,735 HKD|Avg: HK$5,791 HKD
NZ Jewellers
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
November 3, 2026
Retailer 5HK$3,845 HKD
Retailer 9HK$3,962 HKD
Retailer 4HK$4,143 HKD
Retailer 14HK$4,143 HKD
Retailer 12HK$4,394 HKD
Retailer 3HK$4,433 HKD
Retailer 8HK$4,720 HKD
Retailer 2HK$4,805 HKD
Retailer 13HK$4,875 HKD
Retailer 10HK$5,783 HKD
Retailer 6HK$5,900 HKD
Retailer 11HK$5,935 HKD
Retailer 7HK$8,878 HKD
NZ JewellersHK$14,735 HKD

34 data points across 14 retailers

15 retailersHK$3,845 HKD to HK$8,878 HKD

B+
Cheapest Retailer
-
HK$3,845 HKD
$490 USD
B+
Retailer 2
-
HK$3,962 HKD
$505 USD
View
B+
Retailer 3
-
HK$4,143 HKD
$528 USD
View
B+
Retailer 4
-
HK$4,143 HKD
$528 USD
View
B+
Retailer 5
-
HK$4,394 HKD
$560 USD
View
B+
Retailer 6
-
HK$4,433 HKD
$565 USD
View
B+
Retailer 7
-
HK$4,720 HKD
£474 GBP
View
B+
Retailer 8
-
HK$4,805 HKD
£482 GBP
View
B+
Retailer 9
-
HK$4,875 HKD
$621 USD
View
B
Retailer 10
-
HK$5,649 HKD
$720 USD
View
B
Retailer 11
-
HK$5,783 HKD
€702 EUR
View
Retailer 12
-
HK$5,900 HKD
A$1,157 AUD
View
Price last confirmed 30 days ago
B
Retailer 13
-
HK$5,935 HKD
ZAR 12,220 ZAR
View
B
Retailer 14
-
HK$8,878 HKD
£891 GBP
View
Most Expensive
NZ Jewellers
7528be13-a305-4cd0-8e37-6ab161afcc42 · Nov 3
HK$14,735 HKD
$1,878 USD
View
Price under review
14 more retailers have this diamond
Prices start from HK$3,845 HKDSave up to HK$5,034 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$3,845 HKD