Cushion|Natural|GIA

1.20ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 3545423253

Certificate GIA 3545423253

Diamond specifications and retailer prices

From $2,305 USD
As of November 6, 2026
Save $2,534 USD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,861 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural cushion diamond

This 1.2ct 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 3545423253. Listed at 13 retailers as of November 4, 2026, with a 110% 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

1.20
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545423253
Dimensions5.88 × 5.71 × 3.95 mm
L/W Ratio1.03
Top View
5.88 mm5.71 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545423253
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.1%

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: $5,861 USD|Low: $2,305 USD|High: $5,880 USD|Avg: $3,487 USD|-0.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 6$2,305 USD
Retailer 10$2,637 USD
Retailer 4$2,678 USD
Retailer 5$2,790 USD
Retailer 7$2,815 USD
Retailer 3$3,043 USD
Retailer 2$3,079 USD
Retailer 12$3,140 USD
Retailer 8$3,377 USD
Retailer 9$3,541 USD
Retailer 11$4,839 USD
Queensmith$5,861 USD

24 data points across 12 retailers

13 retailers$2,305 USD to $4,839 USD

A
Cheapest Retailer
-
$2,305 USD
A
Retailer 2
-
$2,637 USD
View
B+
Retailer 3
-
$2,678 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,691 USD
View
B+
Retailer 5
-
$2,790 USD
View
B+
Retailer 6
-
$2,815 USD
View
B+
Retailer 7
-
$3,043 USD
View
B+
Retailer 8
-
$3,079 USD
View
B+
Retailer 9
-
$3,140 USD
View
B+
Retailer 10
-
$3,377 USD
View
B+
Retailer 11
-
$3,541 USD
View
B
Retailer 12
-
$4,839 USD
View
Most Expensive
Queensmith
3545423253 · Oct 28
$5,861 USD
£4,615 GBP
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from $2,305 USDSave up to $2,534 USD

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
1.20ct Cushion
$2,305 USD