Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 3435760109

Certificate GIA 3435760109

Diamond specifications and retailer prices

From $1,401 USD
As of November 6, 2026
Save $1,525 USD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,926 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3435760109. Listed at 14 retailers as of November 4, 2026, with prices from $1,401 to $2,926, a $1,525 spread on the same certified stone. MOH London lists it at $2,926. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3435760109
Dimensions5.81 × 5.71 × 4.00 mm
L/W Ratio1.02
Top View
5.81 mm5.71 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3435760109
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.1%

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: $2,926 USD|Low: $1,401 USD|High: $2,969 USD|Avg: $1,946 USD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$1,401 USD
Retailer 5$1,410 USD
Retailer 2$1,624 USD
Retailer 3$1,858 USD
Retailer 4$2,044 USD
Retailer 7$2,185 USD
MOH London$2,926 USD

40 data points across 7 retailers

14 retailers$1,401 USD to $2,926 USD

A
Cheapest Retailer
-
$1,401 USD
Final sale: no returns
A
Retailer 2
-
$1,407 USD
View
A
Retailer 3
-
$1,410 USD
View
B+
Retailer 4
-
$1,602 USD
View
B+
Retailer 5
-
$1,605 USD
View
A
Retailer 6
-
$1,624 USD
View
B+
Retailer 7
-
$1,688 USD
View
B+
Retailer 8
-
$1,790 USD
View
B+
Retailer 9
-
$1,790 USD
View
B+
Retailer 10
-
$1,850 USD
View
B+
Retailer 11
-
$1,858 USD
View
B+
Retailer 12
-
$2,044 USD
View
Retailer 13
-
$2,185 USD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
8D42DC9CD · Nov 4
$2,926 USD
£2,304 GBP
View
13 more retailers have this diamond
Prices start from $1,401 USDSave up to $1,525 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
$1,401 USD