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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 $926 NZD
$521 USD
As of November 2, 2026
Save $2,222 NZD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,148 NZD 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 $926 to $3,148, a $2,222 spread on the same certified stone. NZ Jewellers lists it at $3,148. 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: $3,148 NZD|Low: $851 NZD|High: $3,213 NZD|Avg: $1,587 NZD|-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$926 NZD
Retailer 3$1,031 NZD
Retailer 10$1,136 NZD
Retailer 2$1,230 NZD
Retailer 5$1,351 NZD
Retailer 9$1,516 NZD
Retailer 6$1,549 NZD
Retailer 7$1,670 NZD
Retailer 4$2,318 NZD
NZ Jewellers$3,148 NZD

44 data points across 10 retailers

9 retailers$926 NZD to $3,148 NZD

A
Cheapest Retailer
-
$926 NZD
$521 USD
Final sale: no returns
B+
Retailer 2
-
$1,031 NZD
$580 USD
View
B
Retailer 3
-
$1,230 NZD
£545 GBP
View
B
Retailer 4
-
$1,351 NZD
$760 USD
View
Retailer 5
-
$1,516 NZD
A$1,312 AUD
View
Price last confirmed 29 days ago
B
Retailer 6
-
$1,549 NZD
ZAR 14,084 ZAR
View
B
Retailer 7
-
$1,670 NZD
$940 USD
View
C
Retailer 8
-
$2,318 NZD
£1,027 GBP
View
Most Expensive
C
NZ Jewellers
1ecc8406-127a-40bc-af56-d78a0c727c9b · Oct 30
$3,148 NZD
$1,771 USD
View
8 more retailers have this diamond
Prices start from $926 NZDSave up to $2,222 NZD

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
$926 NZD