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Oval|Natural|GIA

1.00ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 2558391525

Certificate GIA 2558391525

Diamond specifications and retailer prices

From $3,204 SGD
$2,506 USD
As of November 1, 2026
Save $4,367 SGD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,571 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded G 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 2558391525. Listed at 18 retailers as of October 30, 2026, with prices from $3,204 to $7,571, a $4,367 spread on the same certified stone. NZ Jewellers lists it at $7,571. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.71°
OriginNatural
Grading LabGIA
CertificateGIA 2558391525
Dimensions8.37 × 5.38 × 3.44 mm
L/W Ratio1.56
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Natural
Top View
8.37 mm5.38 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558391525
Side View
Table 53.0%Crown 35.71°GirdlePavilionCulet: NoneDepth 63.9%

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 1
Current: $7,571 SGD|Low: $3,080 SGD|High: $7,571 SGD|Avg: $4,107 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
Retailer 17
Retailer 18
November 1, 2026
Retailer 4$3,204 SGD
Retailer 5$3,243 SGD
Retailer 3$3,338 SGD
Retailer 8$3,342 SGD
Retailer 2$3,532 SGD
Retailer 7$3,548 SGD
Retailer 16$3,622 SGD
Retailer 18$3,622 SGD
Retailer 17$3,761 SGD
Retailer 15$3,803 SGD
Retailer 12$3,871 SGD
Retailer 10$4,079 SGD
Retailer 6$4,125 SGD
Retailer 9$4,178 SGD
Retailer 14$4,239 SGD
Retailer 13$4,451 SGD
Retailer 11$6,345 SGD
NZ Jewellers$7,571 SGD

32 data points across 18 retailers

18 retailers$3,204 SGD to $7,571 SGD

A
Cheapest Retailer
-
$3,204 SGD
$2,506 USD
A
Retailer 2
-
$3,243 SGD
$2,537 USD
View
B+
Retailer 3
-
$3,338 SGD
$2,611 USD
View
B+
Retailer 4
-
$3,342 SGD
$2,614 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,532 SGD
£2,176 GBP
View
B+
Retailer 6
-
$3,548 SGD
$2,775 USD
View
B+
Retailer 7
-
$3,622 SGD
$2,833 USD
View
B+
Retailer 8
-
$3,622 SGD
$2,833 USD
View
B+
Retailer 9
-
$3,761 SGD
$2,942 USD
View
B+
Retailer 10
-
$3,803 SGD
$2,975 USD
View
B+
Retailer 11
-
$3,871 SGD
£2,384 GBP
View
Retailer 12
-
$4,079 SGD
A$4,909 AUD
View
Price last confirmed 24 days ago
B
Retailer 13
-
$4,125 SGD
$3,227 USD
View
B
Retailer 14
-
$4,178 SGD
$3,268 USD
View
B
Retailer 15
-
$4,239 SGD
€3,158 EUR
View
B+
Retailer 16
-
$4,451 SGD
ZAR 56,250 ZAR
View
B
Retailer 17
-
$6,345 SGD
£3,908 GBP
View
Most Expensive
B
NZ Jewellers
e5cfa52c-735d-43c2-ba40-497b118d569b · Oct 30
$7,571 SGD
$5,922 USD
View
17 more retailers have this diamond
Prices start from $3,204 SGDSave up to $4,367 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
$3,204 SGD