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Marquise|Natural|GIA

0.51ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 2243023239

Certificate GIA 2243023239

Diamond specifications and retailer prices

From $654 SGD
$511 USD
As of November 2, 2026
Save $1,067 SGD (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,930 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 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 2243023239. Listed at 15 retailers as of October 29, 2026, with a 163% 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.36°
Pavilion angle37.42°
OriginNatural
Grading LabGIA
CertificateGIA 2243023239
Dimensions7.70 × 4.16 × 2.54 mm
L/W Ratio1.85
Culet sizeNone
Top View
7.70 mm4.16 mm0.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2243023239
Side View
Table 56.0%Crown 38.36°Girdle: STK-VTKPavilion 37.42°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,930 SGD|Low: $554 SGD|High: $2,930 SGD|Avg: $1,178 SGD
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 9$554 SGD
Retailer 8$760 SGD
Retailer 7$813 SGD
Retailer 4$831 SGD
Retailer 10$834 SGD
Retailer 15$847 SGD
Retailer 18$847 SGD
Retailer 5$867 SGD
Retailer 16$913 SGD
Retailer 6$977 SGD
Retailer 3$1,081 SGD
Retailer 2$1,112 SGD
Retailer 17$1,122 SGD
Retailer 11$1,327 SGD
Retailer 12$1,442 SGD
Retailer 13$1,720 SGD
Retailer 14$2,692 SGD
NZ Jewellers$2,930 SGD

26 data points across 18 retailers

15 retailers$654 SGD to $1,720 SGD

A
Cheapest Retailer
-
$654 SGD
$511 USD
B+
Retailer 2
-
$831 SGD
$650 USD
View
B+
Retailer 3
-
$847 SGD
$662 USD
View
B+
Retailer 4
-
$847 SGD
$662 USD
View
B+
Retailer 5
-
$867 SGD
$678 USD
View
B
Retailer 6
-
$913 SGD
$714 USD
View
B
Retailer 7
-
$977 SGD
$764 USD
View
B
Retailer 8
-
$1,081 SGD
$845 USD
View
B
Retailer 9
-
$1,112 SGD
£684 GBP
View
B
Retailer 10
-
$1,122 SGD
$877 USD
View
B
Retailer 11
-
$1,327 SGD
€988 EUR
View
B
Retailer 12
-
$1,442 SGD
ZAR 18,217 ZAR
View
B
Retailer 13
-
$1,720 SGD
£1,059 GBP
View
Retailer 14
-
$2,692 SGD
CA$2,923 CAD
View
Price under review
Most Expensive
NZ Jewellers
6e80d1d9-bed5-4791-9044-15335624a7c3 · Oct 30
$2,930 SGD
$2,291 USD
View
Price under review
14 more retailers have this diamond
Prices start from $654 SGDSave up to $1,067 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
$654 SGD