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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1563443794

Certificate GIA 1563443794

Diamond specifications and retailer prices

From $1,548 SGD
As of November 6, 2026
Save $3,719 SGD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,636 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1563443794. Listed at 13 retailers as of November 2, 2026, with a 240% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1563443794
Dimensions6.35 × 6.40 × 3.91 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.35 mm6.40 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563443794
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.3%

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 6
Current: $7,636 SGD|Low: $1,548 SGD|High: $7,636 SGD|Avg: $3,040 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 2$1,548 SGD
Retailer 4$1,833 SGD
Retailer 5$2,293 SGD
Retailer 7$2,611 SGD
Retailer 6$2,626 SGD
Retailer 3$3,898 SGD
Retailer 13$4,214 SGD
Retailer 11$4,224 SGD
Retailer 10$4,393 SGD
Retailer 12$4,565 SGD
Retailer 8$4,741 SGD
Retailer 9$5,268 SGD
MOH London$7,636 SGD

22 data points across 13 retailers

13 retailers$1,548 SGD to $5,268 SGD

A
Cheapest Retailer
-
$1,548 SGD
A
Retailer 2
-
$1,833 SGD
View
B+
Retailer 3
-
$2,293 SGD
View
B+
Retailer 4
-
$2,611 SGD
View
B+
Retailer 5
-
$2,626 SGD
View
B
Retailer 6
-
$3,898 SGD
View
B
Retailer 7
-
$4,214 SGD
View
Final sale: no returns
B
Retailer 8
-
$4,224 SGD
View
B
Retailer 9
-
$4,393 SGD
View
B
Retailer 10
-
$4,565 SGD
View
B
Retailer 11
-
$4,741 SGD
View
B
Retailer 12
-
$5,268 SGD
View
Most Expensive
MOH London
22960E667 · Nov 2
$7,636 SGD
£4,707 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $1,548 SGDSave up to $3,719 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
1.00ct Round
$1,548 SGD