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Marquise|Natural|GIA

0.51ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 1323584591

Certificate GIA 1323584591

Diamond specifications and retailer prices

From $666 SGD
$521 USD
As of November 2, 2026
Save $1,599 SGD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,265 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1323584591. Listed at 9 retailers as of October 30, 2026, with prices from $666 to $2,265, a $1,599 spread on the same certified stone. NZ Jewellers lists it at $2,265. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1323584591
Dimensions7.29 × 4.28 × 2.69 mm
L/W Ratio1.70
Culet sizeNone
Key to symbols
Crystal
Top View
7.29 mm4.28 mm0.51 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1323584591
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.8%

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: $2,265 SGD|Low: $613 SGD|High: $2,312 SGD|Avg: $1,142 SGD|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8$666 SGD
Retailer 3$742 SGD
Retailer 10$818 SGD
Retailer 2$885 SGD
Retailer 5$972 SGD
Retailer 9$1,091 SGD
Retailer 6$1,115 SGD
Retailer 7$1,202 SGD
Retailer 4$1,668 SGD
NZ Jewellers$2,265 SGD

44 data points across 10 retailers

9 retailers$666 SGD to $2,265 SGD

A
Cheapest Retailer
-
$666 SGD
$521 USD
Final sale: no returns
B+
Retailer 2
-
$742 SGD
$580 USD
View
B
Retailer 3
-
$885 SGD
£545 GBP
View
B
Retailer 4
-
$972 SGD
$760 USD
View
Retailer 5
-
$1,091 SGD
A$1,312 AUD
View
Price last confirmed 29 days ago
B
Retailer 6
-
$1,115 SGD
ZAR 14,084 ZAR
View
B
Retailer 7
-
$1,202 SGD
$940 USD
View
C
Retailer 8
-
$1,668 SGD
£1,027 GBP
View
Most Expensive
C
NZ Jewellers
1ecc8406-127a-40bc-af56-d78a0c727c9b · Oct 30
$2,265 SGD
$1,771 USD
View
8 more retailers have this diamond
Prices start from $666 SGDSave up to $1,599 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
$666 SGD