Cushion|Natural|GIA

1.20ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 7551552121

Certificate GIA 7551552121

Diamond specifications and retailer prices

From $3,289 USD
As of November 6, 2026
Save $3,651 USD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,042 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 D 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 7551552121. Listed at 20 retailers as of November 1, 2026, with a 111% 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551552121
Dimensions7.57 × 5.31 × 3.58 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cavity, Feather, Needle, Indented Natural
Top View
7.57 mm5.31 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551552121
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.5%

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: $7,042 USD|Low: $3,264 USD|High: $7,236 USD|Avg: $4,721 USD|-2.3%
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 6, 2026
Retailer 15$3,289 USD
Retailer 2$3,411 USD
Retailer 5$3,762 USD
Retailer 13$4,018 USD
Retailer 4$4,022 USD
Retailer 8$4,149 USD
Retailer 9$4,227 USD
Retailer 16$4,358 USD
Retailer 11$4,388 USD
Retailer 3$4,506 USD
Retailer 7$4,593 USD
Retailer 6$4,629 USD
Retailer 10$4,903 USD
Retailer 12$5,317 USD
Retailer 14$6,940 USD
Queensmith$7,042 USD

23 data points across 16 retailers

20 retailers$3,289 USD to $6,940 USD

B+
Cheapest Retailer
-
$3,289 USD
B+
Retailer 2
-
$3,411 USD
View
B+
Retailer 3
-
$3,762 USD
View
B+
Retailer 4
-
$4,018 USD
View
B+
Retailer 5
-
$4,022 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,149 USD
View
B+
Retailer 7
-
$4,154 USD
View
B+
Retailer 8
-
$4,155 USD
View
B+
Retailer 9
-
$4,227 USD
View
Retailer 10
-
$4,358 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$4,388 USD
View
B
Retailer 12
-
$4,444 USD
View
B
Retailer 13
-
$4,506 USD
View
B
Retailer 14
-
$4,593 USD
View
Retailer 15
-
$4,597 USD
View
Price last confirmed 28 days ago
B
Retailer 16
-
$4,629 USD
View
B
Retailer 17
-
$4,903 USD
View
B
Retailer 18
-
$5,317 USD
View
B
Retailer 19
-
$6,940 USD
View
Most Expensive
Queensmith
7551552121 · Oct 28
$7,042 USD
£5,545 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $3,289 USDSave up to $3,651 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.

B+
1.20ct Cushion
$3,289 USD