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Oval|Natural|GIA

1.00ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1553987872

Certificate GIA 1553987872

Diamond specifications and retailer prices

From $1,743 SGD
As of November 6, 2026
Save $3,896 SGD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,255 SGD at NZ Jewellers · As of August 29, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-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 1553987872. Listed at 12 retailers as of November 5, 2026, with a 224% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553987872
Dimensions8.16 × 5.53 × 3.44 mm
L/W Ratio1.48
Girdle conditionThick
Top View
8.16 mm5.53 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553987872
Side View
Table 55.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.2%

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: $5,639 SGD|Low: $1,743 SGD|High: $5,913 SGD|Avg: $2,915 SGD|-4.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,743 SGD
Retailer 9$1,844 SGD
Retailer 10$2,107 SGD
Retailer 8$2,384 SGD
Retailer 11$2,488 SGD
Retailer 5$2,567 SGD
Retailer 4$2,822 SGD
Retailer 7$3,155 SGD
Retailer 3$3,200 SGD
Retailer 6$4,040 SGD
NZ Jewellers$5,639 SGD

34 data points across 11 retailers

12 retailers$1,743 SGD to $5,639 SGD

A
Cheapest Retailer
-
$1,743 SGD
A
Retailer 2
-
$1,844 SGD
View
Final sale: no returns
B+
Retailer 3
-
$2,107 SGD
View
B+
Retailer 4
-
$2,384 SGD
View
B+
Retailer 5
-
$2,488 SGD
View
B+
Retailer 6
-
$2,567 SGD
View
B+
Retailer 7
-
$2,822 SGD
View
B+
Retailer 8
-
$3,155 SGD
View
Retailer 9
-
$3,200 SGD
View
Price last confirmed 32 days ago
B
Retailer 10
-
$4,040 SGD
View
B
Retailer 11
-
$5,639 SGD
View
Most Expensive
NZ Jewellers
1efc91e5-184a-41a5-82b1-23cc35e29b1a · Aug 29
$6,255 SGD
$4,881 USD
View
Price last confirmed 69 days ago
11 more retailers have this diamond
Prices start from $1,743 SGDSave up to $3,896 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 Oval
$1,743 SGD