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Cushion|Natural|GIA

1.21ct H SI2 Cushion Natural Diamond

ID • H/SI2 • GIA 6512083209

Certificate GIA 6512083209

Diamond specifications and retailer prices

From $1,706 SGD
As of November 6, 2026
Save $809 SGD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,514 SGD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded H 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 6512083209. Listed at 6 retailers as of November 5, 2026, with prices from $1,706 to $2,514, a $809 spread on the same certified stone. Blue Nile lists it at $2,514. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512083209
Dimensions6.51 × 6.13 × 4.01 mm
L/W Ratio1.06
Top View
6.51 mm6.13 mm1.21 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512083209
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $2,514 SGD|Low: $1,689 SGD|High: $2,514 SGD|Avg: $2,149 SGD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3$1,706 SGD
Retailer 5$2,092 SGD
Retailer 4$2,133 SGD
Retailer 2$2,188 SGD
Retailer 6$2,361 SGD
Blue Nile$2,514 SGD

10 data points across 6 retailers

6 retailers$1,706 SGD to $2,514 SGD

A
Cheapest Retailer
-
$1,706 SGD
A
Retailer 2
-
$2,092 SGD
View
A
Retailer 3
-
$2,133 SGD
View
Final sale: no returns
A
Retailer 4
-
$2,188 SGD
View
A
Retailer 5
-
$2,361 SGD
View
Most Expensive
A
Blue Nile
23635727 · Nov 5
$2,514 SGD
$1,962 USD
View
5 more retailers have this diamond
Prices start from $1,706 SGDSave up to $809 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 Cushion
$1,706 SGD