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Marquise|Natural|GIA

0.51ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 1563201117

Certificate GIA 1563201117

Diamond specifications and retailer prices

From HK$4,137 HKD
₹50,219 INR
As of November 2, 2026
Save HK$8,727 HKD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$17,465 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1563201117. Listed at 14 retailers as of November 1, 2026, with a 211% 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563201117
Dimensions8.62 × 4.10 × 2.38 mm
L/W Ratio2.10
Culet sizeNone
Key to symbols
Feather
Top View
8.62 mm4.10 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1563201117
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.1%

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 2
Current: HK$17,465 HKD|Low: HK$4,129 HKD|High: HK$17,740 HKD|Avg: HK$7,514 HKD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2HK$4,137 HKD
Retailer 3HK$5,139 HKD
Retailer 6HK$5,139 HKD
Retailer 10HK$5,571 HKD
Retailer 9HK$5,783 HKD
Retailer 11HK$5,783 HKD
Retailer 4HK$6,426 HKD
Retailer 8HK$6,434 HKD
Retailer 12HK$6,771 HKD
Retailer 5HK$6,837 HKD
Retailer 7HK$12,864 HKD
NZ JewellersHK$17,465 HKD

17 data points across 12 retailers

14 retailersHK$4,137 HKD to HK$12,864 HKD

A
Cheapest Retailer
-
HK$4,137 HKD
₹50,219 INR
B+
Retailer 2
-
HK$4,720 HKD
View
Retailer 3
-
HK$5,139 HKD
$655 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
HK$5,139 HKD
$655 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$5,571 HKD
$710 USD
View
B+
Retailer 6
-
HK$5,783 HKD
$737 USD
View
B+
Retailer 7
-
HK$5,783 HKD
SGD 996 SGD
View
B
Retailer 8
-
HK$6,426 HKD
$819 USD
View
B
Retailer 9
-
HK$6,434 HKD
$820 USD
View
B
Retailer 10
-
HK$6,771 HKD
$863 USD
View
B
Retailer 11
-
HK$6,837 HKD
£686 GBP
View
Retailer 12
-
HK$9,365 HKD
A$1,836 AUD
View
Price last confirmed 30 days ago
C
Retailer 13
-
HK$12,864 HKD
£1,291 GBP
View
Most Expensive
NZ Jewellers
6662c6bd-8578-4f95-ba5c-ea3c8e1051da · Nov 3
HK$17,465 HKD
$2,226 USD
View
Price under review
13 more retailers have this diamond
Prices start from HK$4,137 HKDSave up to HK$8,727 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$4,137 HKD