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Cushion|Natural|GIA

1.21ct G SI1 Cushion Natural Diamond

VG • G/SI1 • GIA 3555391127

Certificate GIA 3555391127

Diamond specifications and retailer prices

From $6,081 AUD
As of November 4, 2026
Save $4,960 AUD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,040 AUD 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 G 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 3555391127. Listed at 13 retailers as of November 4, 2026, with prices from $6,081 to $11,040, a $4,960 spread on the same certified stone. MOH London lists it at $11,040. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555391127
Dimensions7.29 × 5.60 × 3.65 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural, Needle
Top View
7.29 mm5.60 mm1.21 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555391127
Side View
Table 66.0%CrownGirdle: THN-THKPavilionCulet: NDepth 65.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $11,040 AUD|Low: $6,081 AUD|High: $11,070 AUD|Avg: $7,447 AUD|-0.3%
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 6, 2026
Retailer 9$6,081 AUD
Retailer 13$6,210 AUD
Retailer 10$6,303 AUD
Retailer 3$6,573 AUD
Retailer 11$6,709 AUD
Retailer 2$6,743 AUD
Retailer 8$7,016 AUD
Retailer 5$7,220 AUD
Retailer 4$7,341 AUD
Retailer 6$8,013 AUD
Retailer 7$8,689 AUD
Retailer 12$10,748 AUD
MOH London$11,040 AUD

38 data points across 13 retailers

13 retailers$6,081 AUD to $11,040 AUD

B
Cheapest Retailer
-
$6,081 AUD
B
Retailer 2
-
$6,210 AUD
View
B
Retailer 3
-
$6,303 AUD
View
B
Retailer 4
-
$6,573 AUD
View
Final sale: no returns
B
Retailer 5
-
$6,709 AUD
View
B
Retailer 6
-
$6,743 AUD
View
B
Retailer 7
-
$7,016 AUD
View
B
Retailer 8
-
$7,220 AUD
View
B
Retailer 9
-
$7,341 AUD
View
B
Retailer 10
-
$8,013 AUD
View
B
Retailer 11
-
$8,689 AUD
View
Retailer 12
-
$10,748 AUD
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
B59591D2B · Nov 4
$11,040 AUD
£5,973 GBP
View
12 more retailers have this diamond
Prices start from $6,081 AUDSave up to $4,960 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
$6,081 AUD