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Radiant|Natural|GIA

1.20ct K SI2 Radiant Natural Diamond

ID • K/SI2 • GIA 1151

Certificate GIA 1151

Diamond specifications and retailer prices

From $3,167 SGD
As of November 4, 2026
Save $70 SGD (2%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,237 SGD at B2C Jewels · As of November 6, 2026
View at B2C Jewels

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of November 4, 2026, with a relatively tight 2% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1151
Dimensions6.57 × 5.27 mm
L/W Ratio1.25
Top View
6.57 mm5.27 mm1.20 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1151
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $3,237 SGD|Low: $3,167 SGD|High: $3,237 SGD|Avg: $3,187 SGD|+1.3%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2$3,167 SGD
B2C Jewels$3,237 SGD

3 data points across 2 retailers

2 retailers$3,167 SGD to $3,237 SGD

B
Cheapest Retailer
-
$3,167 SGD
Most Expensive
B
B2C Jewels
21450396 · Nov 6
$3,237 SGD
$2,526 USD
View
1 more retailer has this diamond
Prices start from $3,167 SGDSave up to $70 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.

B
1.20ct Radiant
$3,167 SGD