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Oval|Natural|GIA

0.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6565801280

Certificate GIA 6565801280

Diamond specifications and retailer prices

From $410 SGD
As of November 6, 2026
Save $1,702 SGD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,112 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565801280. Listed at 16 retailers as of November 5, 2026, with prices from $410 to $2,112, a $1,702 spread on the same certified stone. NZ Jewellers lists it at $2,112. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565801280
Dimensions6.32 × 4.47 × 2.85 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Knot
Top View
6.32 mm4.47 mm0.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6565801280
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.7%

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 6
Current: $2,112 SGD|Low: $410 SGD|High: $2,112 SGD|Avg: $807 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
November 6, 2026
Retailer 10$410 SGD
Retailer 2$504 SGD
Retailer 7$551 SGD
Retailer 9$566 SGD
Retailer 8$593 SGD
Retailer 15$629 SGD
Retailer 11$665 SGD
Retailer 4$666 SGD
Retailer 14$669 SGD
Retailer 16$693 SGD
Retailer 12$713 SGD
Retailer 13$778 SGD
Retailer 5$820 SGD
Retailer 3$854 SGD
Retailer 6$1,270 SGD
NZ Jewellers$2,112 SGD

5 data points across 16 retailers

16 retailers$410 SGD to $2,112 SGD

A
Cheapest Retailer
-
$410 SGD
A
Retailer 2
-
$504 SGD
View
Final sale: no returns
A
Retailer 3
-
$551 SGD
View
A
Retailer 4
-
$566 SGD
View
A
Retailer 5
-
$593 SGD
View
A
Retailer 6
-
$629 SGD
View
A
Retailer 7
-
$665 SGD
View
B+
Retailer 8
-
$666 SGD
View
A
Retailer 9
-
$669 SGD
View
B+
Retailer 10
-
$693 SGD
View
B+
Retailer 11
-
$713 SGD
View
B+
Retailer 12
-
$778 SGD
View
B+
Retailer 13
-
$820 SGD
View
B
Retailer 14
-
$854 SGD
View
B
Retailer 15
-
$1,270 SGD
View
Most Expensive
B
NZ Jewellers
9a4e8a39-a3b4-4111-8165-27ef4de888cb · Nov 5
$2,112 SGD
$1,648 USD
View
15 more retailers have this diamond
Prices start from $410 SGDSave up to $1,702 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 Oval
$410 SGD