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Oval|Natural|GIA

1.21ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 2557610799

Certificate GIA 2557610799

Diamond specifications and retailer prices

From $2,891 SGD
As of November 5, 2026
Save $2,421 SGD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,312 SGD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557610799. Listed at 14 retailers as of November 5, 2026, with prices from $2,891 to $5,312, a $2,421 spread on the same certified stone. Helzberg Diamonds lists it at $5,312. 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

1.21
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.61°
Pavilion angle39.97°
OriginNatural
Grading LabGIA
CertificateGIA 2557610799
Dimensions8.34 × 5.99 × 3.72 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.34 mm5.99 mm1.21 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557610799
Side View
Table 60.0%Crown 38.61°Girdle: STK-THKPavilion 39.97°Culet: NoneDepth 62.0%

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 5
Current: $5,312 SGD|Low: $2,875 SGD|High: $5,707 SGD|Avg: $3,781 SGD|-6.9%
Helzberg Diamonds
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 9$2,891 SGD
Retailer 12$2,913 SGD
Retailer 2$3,039 SGD
Retailer 11$3,091 SGD
Retailer 8$3,308 SGD
Retailer 5$3,367 SGD
Retailer 3$3,638 SGD
Retailer 10$3,717 SGD
Retailer 4$3,801 SGD
Retailer 6$3,878 SGD
Retailer 7$3,972 SGD
Retailer 13$5,070 SGD
Helzberg Diamonds$5,312 SGD

25 data points across 13 retailers

14 retailers$2,891 SGD to $5,312 SGD

A
Cheapest Retailer
-
$2,891 SGD
A
Retailer 2
-
$2,913 SGD
View
A
Retailer 3
-
$3,039 SGD
View
A
Retailer 4
-
$3,091 SGD
View
A
Retailer 5
-
$3,308 SGD
View
A
Retailer 6
-
$3,367 SGD
View
A
Retailer 7
-
$3,638 SGD
View
A
Retailer 8
-
$3,717 SGD
View
A
Retailer 9
-
$3,801 SGD
View
A
Retailer 10
-
$3,878 SGD
View
B+
Retailer 11
-
$3,972 SGD
View
B+
Retailer 12
-
$4,042 SGD
View
B+
Retailer 13
-
$5,070 SGD
View
Most Expensive
B+
Helzberg Diamonds
XZRILLNMHGNPP · Nov 6
$5,312 SGD
$4,145 USD
View
13 more retailers have this diamond
Prices start from $2,891 SGDSave up to $2,421 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
1.21ct Oval
$2,891 SGD