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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 2436738919

Certificate GIA 2436738919

Diamond specifications and retailer prices

From $2,966 NZD
$1,668 USD
As of November 2, 2026
Save $3,463 NZD (54%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,429 NZD at Frank Darling · As of November 2, 2026
View at Frank Darling

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 2436738919. Listed at 7 retailers as of November 2, 2026, with prices from $2,966 to $6,429, a $3,463 spread on the same certified stone. Frank Darling lists it at $6,429. 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
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.2°
Pavilion angle64.9°
OriginNatural
Grading LabGIA
CertificateGIA 2436738919
Dimensions5.90 × 5.63 × 3.99 mm
L/W Ratio1.05
Top View
5.90 mm5.63 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2436738919
Side View
Table 69.0%Crown 39.2°Girdle: THK-VTKPavilion 64.9°Culet: NoneDepth 70.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $6,429 NZD|Low: $2,966 NZD|High: $6,429 NZD|Avg: $3,918 NZD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6$2,966 NZD
Retailer 4$2,985 NZD
Retailer 5$3,008 NZD
Retailer 3$3,094 NZD
Retailer 2$4,525 NZD
Frank Darling$6,429 NZD

34 data points across 6 retailers

7 retailers$2,966 NZD to $6,429 NZD

B+
Cheapest Retailer
-
$2,966 NZD
$1,668 USD
B+
Retailer 2
-
$2,985 NZD
$1,679 USD
View
B+
Retailer 3
-
$3,008 NZD
$1,692 USD
View
B+
Retailer 4
-
$3,094 NZD
$1,740 USD
View
B+
Retailer 5
-
$3,108 NZD
A$2,689 AUD
View
B
Retailer 6
-
$4,525 NZD
£2,004 GBP
View
Most Expensive
C
Frank Darling
CU2552MR · Nov 2
$6,429 NZD
$3,616 USD
View
6 more retailers have this diamond
Prices start from $2,966 NZDSave up to $3,463 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.

B+
1.21ct Cushion
$2,966 NZD