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Marquise|Natural|GIA

0.51ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 1563008847

Certificate GIA 1563008847

Diamond specifications and retailer prices

From $487 USD
As of November 4, 2026
Save $1,171 USD (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,658 USD 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563008847. Listed at 12 retailers as of November 3, 2026, with prices from $487 to $1,658, a $1,171 spread on the same certified stone. NZ Jewellers lists it at $1,658. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563008847
Dimensions8.82 × 4.16 × 2.43 mm
L/W Ratio2.12
Girdle conditionFaceted
Culet sizeNone
Top View
8.82 mm4.16 mm0.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1563008847
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.4%

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 4
Current: $656 USD|Low: $447 USD|High: $1,235 USD|Avg: $699 USD|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4$487 USD
Retailer 6$569 USD
Retailer 8$610 USD
Retailer 5$639 USD
Retailer 1$656 USD
Retailer 7$660 USD
Retailer 3$789 USD
Retailer 2$1,219 USD

44 data points across 8 retailers

12 retailers$487 USD to $1,658 USD

A
Cheapest Retailer
-
$487 USD
Final sale: no returns
A
Retailer 2
-
$529 USD
View
Retailer 3
-
$569 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$569 USD
View
B+
Retailer 5
-
$610 USD
View
Retailer 6
-
$610 USD
View
Price last confirmed 61 days ago
B+
Retailer 7
-
$610 USD
View
B+
Retailer 8
-
$656 USD
View
B+
Retailer 9
-
$660 USD
View
B
Retailer 10
-
$789 USD
View
B
Retailer 11
-
$1,219 USD
View
Most Expensive
C
NZ Jewellers
6bb20c1b-f3cc-4e77-b777-68db4d99320e · Nov 3
$1,658 USD
View
11 more retailers have this diamond
Prices start from $487 USDSave up to $1,171 USD

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
$487 USD