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Oval|Natural|GIA

1.23ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 7558078140

Certificate GIA 7558078140

Diamond specifications and retailer prices

From $3,597 SGD
As of November 6, 2026
Save $3,192 SGD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,790 SGD at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1.23ct natural oval diamond

This 1.23ct 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 7558078140. Listed at 8 retailers as of November 6, 2026, with prices from $3,597 to $6,790, a $3,192 spread on the same certified stone. NZ Jewellers lists it at $6,790. 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

1.23
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7558078140
Dimensions8.44 × 5.85 × 3.79 mm
L/W Ratio1.44
Key to symbols
Twinning Wisp, Crystal, Feather, Needle, Indented Natural
Top View
8.44 mm5.85 mm1.23 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7558078140
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.7%

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: $6,790 SGD|Low: $3,210 SGD|High: $7,820 SGD|Avg: $5,186 SGD|-13.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$3,597 SGD
Retailer 2$3,696 SGD
Retailer 6$3,783 SGD
Retailer 8$4,427 SGD
Retailer 4$4,561 SGD
Retailer 3$4,965 SGD
Retailer 5$6,518 SGD
NZ Jewellers$6,790 SGD

28 data points across 8 retailers

8 retailers$3,597 SGD to $6,790 SGD

A
Cheapest Retailer
-
$3,597 SGD
Final sale: no returns
A
Retailer 2
-
$3,696 SGD
View
A
Retailer 3
-
$3,783 SGD
View
B+
Retailer 4
-
$4,427 SGD
View
B+
Retailer 5
-
$4,561 SGD
View
B
Retailer 6
-
$4,965 SGD
View
B
Retailer 7
-
$6,518 SGD
View
Most Expensive
B
NZ Jewellers
f6a33742-cd44-4298-8f85-7f137b23fb5f · Nov 7
$6,790 SGD
$5,298 USD
View
7 more retailers have this diamond
Prices start from $3,597 SGDSave up to $3,192 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
1.23ct Oval
$3,597 SGD