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Cushion|Natural|GIA

1.21ct I SI2 Cushion Natural Diamond

VG • I/SI2 • GIA 1539449998

Certificate GIA 1539449998

Diamond specifications and retailer prices

From $1,899 AUD
HK$10,400 HKD
As of November 2, 2026
Save $2,473 AUD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,373 AUD at MOH London · As of November 2, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1539449998. Listed at 14 retailers as of November 2, 2026, with prices from $1,899 to $4,373, a $2,473 spread on the same certified stone. MOH London lists it at $4,373. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle31.8°
OriginNatural
Grading LabGIA
CertificateGIA 1539449998
Dimensions6.10 × 5.89 × 3.86 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
6.10 mm5.89 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539449998
Side View
Table 63.0%CrownGirdle: STK-VTKPavilion 31.8°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $4,373 AUD|Low: $1,863 AUD|High: $4,588 AUD|Avg: $2,671 AUD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 7$1,899 AUD
Retailer 5$1,998 AUD
Retailer 12$2,075 AUD
Retailer 10$2,086 AUD
Retailer 2$2,193 AUD
Retailer 13$2,240 AUD
Retailer 6$2,297 AUD
Retailer 4$2,354 AUD
Retailer 9$2,478 AUD
Retailer 11$2,509 AUD
Retailer 8$3,407 AUD
Retailer 3$3,882 AUD
MOH London$4,373 AUD

34 data points across 13 retailers

14 retailers$1,899 AUD to $4,373 AUD

A
Cheapest Retailer
-
$1,899 AUD
HK$10,400 HKD
A
Retailer 2
-
$1,998 AUD
$1,400 USD
View
A
Retailer 3
-
$2,075 AUD
$1,454 USD
View
A
Retailer 4
-
$2,086 AUD
$1,462 USD
View
Final sale: no returns
A
Retailer 5
-
$2,193 AUD
$1,537 USD
View
A
Retailer 6
-
$2,240 AUD
$1,570 USD
View
A
Retailer 7
-
$2,297 AUD
$1,610 USD
View
A
Retailer 8
-
$2,354 AUD
$1,650 USD
View
A
Retailer 9
-
$2,478 AUD
$1,736 USD
View
A
Retailer 10
-
$2,509 AUD
£1,384 GBP
View
B+
Retailer 11
-
$2,744 AUD
View
B+
Retailer 12
-
$3,407 AUD
€2,274 EUR
View
Retailer 13
-
$3,882 AUD
$2,721 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
7C686F27C · Nov 2
$4,373 AUD
£2,413 GBP
View
13 more retailers have this diamond
Prices start from $1,899 AUDSave up to $2,473 AUD

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
$1,899 AUD