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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 $2,401 NZD
As of November 6, 2026
Save $1,138 NZD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,539 NZD 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 $2,401 to $3,539, a $1,138 spread on the same certified stone. Blue Nile lists it at $3,539. 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: $3,539 NZD|Low: $2,378 NZD|High: $3,539 NZD|Avg: $3,024 NZD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3$2,401 NZD
Retailer 5$2,944 NZD
Retailer 4$3,002 NZD
Retailer 2$3,079 NZD
Retailer 6$3,323 NZD
Blue Nile$3,539 NZD

10 data points across 6 retailers

6 retailers$2,401 NZD to $3,539 NZD

A
Cheapest Retailer
-
$2,401 NZD
A
Retailer 2
-
$2,944 NZD
View
A
Retailer 3
-
$3,002 NZD
View
Final sale: no returns
A
Retailer 4
-
$3,079 NZD
View
A
Retailer 5
-
$3,323 NZD
View
Most Expensive
A
Blue Nile
23635727 · Nov 5
$3,539 NZD
$1,962 USD
View
5 more retailers have this diamond
Prices start from $2,401 NZDSave up to $1,138 NZD

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
$2,401 NZD