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Cushion|Natural|GIA

1.21ct I SI2 Cushion Natural Diamond

VG • I/SI2 • GIA 1553581859

Certificate GIA 1553581859

Diamond specifications and retailer prices

From $1,735 AUD
HK$9,500 HKD
As of November 2, 2026
Save $2,540 AUD (59%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,275 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 1553581859. Listed at 13 retailers as of November 2, 2026, with prices from $1,735 to $4,275, a $2,540 spread on the same certified stone. MOH London lists it at $4,275. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553581859
Dimensions6.08 × 5.96 × 4.08 mm
L/W Ratio1.02
Girdle conditionFaceted
Top View
6.08 mm5.96 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553581859
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.4%

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: $4,275 AUD|Low: $1,717 AUD|High: $4,458 AUD|Avg: $2,719 AUD|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6$1,735 AUD
Retailer 12$1,909 AUD
Retailer 10$2,039 AUD
Retailer 3$2,066 AUD
Retailer 2$2,110 AUD
Retailer 5$2,197 AUD
Retailer 11$2,304 AUD
Retailer 9$2,308 AUD
Retailer 8$3,170 AUD
Retailer 4$3,589 AUD
Retailer 7$3,781 AUD
MOH London$4,275 AUD

33 data points across 12 retailers

13 retailers$1,735 AUD to $4,275 AUD

A
Cheapest Retailer
-
$1,735 AUD
HK$9,500 HKD
A
Retailer 2
-
$1,909 AUD
$1,338 USD
View
A
Retailer 3
-
$2,039 AUD
$1,429 USD
View
Final sale: no returns
A
Retailer 4
-
$2,066 AUD
$1,448 USD
View
A
Retailer 5
-
$2,110 AUD
$1,479 USD
View
A
Retailer 6
-
$2,197 AUD
$1,540 USD
View
A
Retailer 7
-
$2,304 AUD
£1,271 GBP
View
A
Retailer 8
-
$2,308 AUD
$1,618 USD
View
B+
Retailer 9
-
$2,549 AUD
View
B+
Retailer 10
-
$3,170 AUD
€2,116 EUR
View
Retailer 11
-
$3,589 AUD
$2,516 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$3,781 AUD
$2,650 USD
View
Most Expensive
B
MOH London
42154442C · Nov 2
$4,275 AUD
£2,359 GBP
View
12 more retailers have this diamond
Prices start from $1,735 AUDSave up to $2,540 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
$1,735 AUD