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Oval|Natural|GIA

1.20ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 6551103221

Certificate GIA 6551103221

Diamond specifications and retailer prices

From $1,788 SGD
As of November 6, 2026
Save $2,362 SGD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,138 SGD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551103221. Listed at 15 retailers as of November 4, 2026, with a 132% 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551103221
Dimensions8.31 × 5.92 × 3.72 mm
L/W Ratio1.40
Top View
8.31 mm5.92 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551103221
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $3,694 SGD|Low: $1,788 SGD|High: $4,350 SGD|Avg: $2,771 SGD|-3.2%
Retailer 1
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
November 6, 2026
Retailer 4$1,788 SGD
Retailer 2$2,193 SGD
Retailer 3$2,280 SGD
Retailer 7$2,304 SGD
Retailer 13$2,441 SGD
Retailer 8$2,488 SGD
Retailer 11$2,580 SGD
Retailer 10$2,584 SGD
Retailer 6$2,588 SGD
Retailer 5$2,781 SGD
Retailer 9$2,899 SGD
Retailer 14$3,244 SGD
Retailer 1$3,694 SGD
Retailer 12$4,150 SGD

29 data points across 14 retailers

15 retailers$1,788 SGD to $4,150 SGD

A
Cheapest Retailer
-
$1,788 SGD
A
Retailer 2
-
$2,193 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,280 SGD
View
A
Retailer 4
-
$2,304 SGD
View
A
Retailer 5
-
$2,441 SGD
View
A
Retailer 6
-
$2,488 SGD
View
B+
Retailer 7
-
$2,580 SGD
View
B+
Retailer 8
-
$2,584 SGD
View
B+
Retailer 9
-
$2,588 SGD
View
B+
Retailer 10
-
$2,781 SGD
View
B+
Retailer 11
-
$2,899 SGD
View
B+
Retailer 12
-
$3,244 SGD
View
B+
Retailer 13
-
$3,694 SGD
View
B
Retailer 14
-
$4,150 SGD
View
Most Expensive
NZ Jewellers
a0e7a31b-df52-40ef-b720-e40980b53606 · Sep 26
$6,138 SGD
$4,789 USD
View
Price last confirmed 41 days ago
14 more retailers have this diamond
Prices start from $1,788 SGDSave up to $2,362 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
1.20ct Oval
$1,788 SGD