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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 $674 SGD
₹50,219 INR
As of November 2, 2026
Save $1,422 SGD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,847 SGD at NZ Jewellers · As of October 30, 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: $2,847 SGD|Low: $673 SGD|High: $2,892 SGD|Avg: $1,225 SGD|-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 2$674 SGD
Retailer 3$838 SGD
Retailer 6$838 SGD
Retailer 10$908 SGD
Retailer 9$943 SGD
Retailer 11$943 SGD
Retailer 4$1,047 SGD
Retailer 8$1,049 SGD
Retailer 12$1,104 SGD
Retailer 5$1,114 SGD
Retailer 7$2,097 SGD
NZ Jewellers$2,847 SGD

17 data points across 12 retailers

14 retailers$674 SGD to $2,097 SGD

A
Cheapest Retailer
-
$674 SGD
₹50,219 INR
B+
Retailer 2
-
$769 SGD
HK$4,700 HKD
View
Retailer 3
-
$838 SGD
$655 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
$838 SGD
$655 USD
View
Final sale: no returns
B+
Retailer 5
-
$908 SGD
$710 USD
View
B+
Retailer 6
-
$943 SGD
$737 USD
View
B+
Retailer 7
-
$943 SGD
View
B
Retailer 8
-
$1,047 SGD
$819 USD
View
B
Retailer 9
-
$1,049 SGD
$820 USD
View
B
Retailer 10
-
$1,104 SGD
$863 USD
View
B
Retailer 11
-
$1,114 SGD
£686 GBP
View
Retailer 12
-
$1,526 SGD
A$1,836 AUD
View
Price last confirmed 29 days ago
C
Retailer 13
-
$2,097 SGD
£1,291 GBP
View
Most Expensive
NZ Jewellers
6662c6bd-8578-4f95-ba5c-ea3c8e1051da · Oct 30
$2,847 SGD
$2,226 USD
View
Price under review
13 more retailers have this diamond
Prices start from $674 SGDSave up to $1,422 SGD

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
$674 SGD