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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 6555036647

Certificate GIA 6555036647

Diamond specifications and retailer prices

From $4,462 AUD
As of November 6, 2026
Save $5,242 AUD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,704 AUD at MOH London · As of November 7, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555036647. Listed at 19 retailers as of November 6, 2026, with prices from $4,462 to $9,704, a $5,242 spread on the same certified stone. MOH London lists it at $9,704. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555036647
Dimensions7.40 × 5.49 × 3.76 mm
L/W Ratio1.35
Top View
7.40 mm5.49 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555036647
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.5%

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 6
Current: $9,704 AUD|Low: $4,462 AUD|High: $9,874 AUD|Avg: $6,183 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 5$4,462 AUD
Retailer 12$4,692 AUD
Retailer 11$4,879 AUD
Retailer 3$4,963 AUD
Retailer 13$5,072 AUD
Retailer 9$5,285 AUD
Retailer 6$5,810 AUD
Retailer 2$5,923 AUD
Retailer 4$6,254 AUD
Retailer 7$6,564 AUD
Retailer 8$7,120 AUD
Retailer 10$8,430 AUD
MOH London$9,704 AUD

46 data points across 13 retailers

19 retailers$4,462 AUD to $9,704 AUD

B+
Cheapest Retailer
-
$4,462 AUD
B
Retailer 2
-
$4,483 AUD
View
B+
Retailer 3
-
$4,692 AUD
View
B
Retailer 4
-
$4,879 AUD
View
Final sale: no returns
B
Retailer 5
-
$4,963 AUD
View
B
Retailer 6
-
$5,072 AUD
View
Retailer 7
-
$5,285 AUD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$5,647 AUD
View
B
Retailer 9
-
$5,747 AUD
View
B
Retailer 10
-
$5,810 AUD
View
B
Retailer 11
-
$5,923 AUD
View
B
Retailer 12
-
$5,982 AUD
View
B
Retailer 13
-
$5,982 AUD
View
B
Retailer 14
-
$6,171 AUD
View
Retailer 15
-
$6,254 AUD
View
Price last confirmed 34 days ago
B
Retailer 16
-
$6,564 AUD
View
B
Retailer 17
-
$7,120 AUD
View
B
Retailer 18
-
$8,430 AUD
View
Most Expensive
B
MOH London
61E79E120 · Nov 7
$9,704 AUD
£5,250 GBP
View
18 more retailers have this diamond
Prices start from $4,462 AUDSave up to $5,242 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.

B+
1.21ct Cushion
$4,462 AUD