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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 $1,331 USD
As of November 6, 2026
Save $631 USD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,962 USD 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 $1,331 to $1,962, a $631 spread on the same certified stone. Blue Nile lists it at $1,962. 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
Color
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

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: $1,962 USD|Low: $1,318 USD|High: $1,962 USD|Avg: $1,677 USD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3$1,331 USD
Retailer 5$1,632 USD
Retailer 4$1,664 USD
Retailer 2$1,707 USD
Retailer 6$1,842 USD
Blue Nile$1,962 USD

10 data points across 6 retailers

6 retailers$1,331 USD to $1,962 USD

A
Cheapest Retailer
-
$1,331 USD
A
Retailer 2
-
$1,632 USD
View
A
Retailer 3
-
$1,664 USD
View
Final sale: no returns
A
Retailer 4
-
$1,707 USD
View
A
Retailer 5
-
$1,842 USD
View
Most Expensive
A
Blue Nile
23635727 · Nov 5
$1,962 USD
View
5 more retailers have this diamond
Prices start from $1,331 USDSave up to $631 USD

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
$1,331 USD