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Cushion|Natural|GIA

1.21ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 2547519215

Certificate GIA 2547519215

Diamond specifications and retailer prices

From $3,967 AUD
As of November 6, 2026
Save $4,688 AUD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,316 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547519215. Listed at 19 retailers as of November 6, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2547519215
Dimensions7.33 × 5.45 × 3.68 mm
L/W Ratio1.34
Top View
7.33 mm5.45 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2547519215
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.4%

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 6
Current: $9,316 AUD|Low: $3,930 AUD|High: $9,445 AUD|Avg: $5,782 AUD|-1.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 16$3,967 AUD
Retailer 11$4,119 AUD
Retailer 8$4,717 AUD
Retailer 6$4,803 AUD
Retailer 15$4,806 AUD
Retailer 3$5,007 AUD
Retailer 2$5,081 AUD
Retailer 5$5,203 AUD
Retailer 10$5,384 AUD
Retailer 4$5,414 AUD
Retailer 7$5,501 AUD
Retailer 13$5,513 AUD
Retailer 12$6,057 AUD
Retailer 14$6,350 AUD
Retailer 9$8,655 AUD
Queensmith$9,316 AUD

23 data points across 16 retailers

19 retailers$3,967 AUD to $8,655 AUD

A
Cheapest Retailer
-
$3,967 AUD
A
Retailer 2
-
$4,119 AUD
View
B+
Retailer 3
-
$4,717 AUD
View
B+
Retailer 4
-
$4,803 AUD
View
Final sale: no returns
B+
Retailer 5
-
$4,806 AUD
View
B+
Retailer 6
-
$5,007 AUD
View
B+
Retailer 7
-
$5,014 AUD
View
B+
Retailer 8
-
$5,081 AUD
View
Retailer 9
-
$5,203 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$5,370 AUD
View
B+
Retailer 11
-
$5,384 AUD
View
B+
Retailer 12
-
$5,414 AUD
View
B+
Retailer 13
-
$5,501 AUD
View
B+
Retailer 14
-
$5,513 AUD
View
Retailer 15
-
$5,791 AUD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$6,057 AUD
View
B
Retailer 17
-
$6,350 AUD
View
B
Retailer 18
-
$8,655 AUD
View
Most Expensive
Queensmith
2547519215 · Oct 28
$9,316 AUD
£5,040 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $3,967 AUDSave up to $4,688 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
$3,967 AUD