Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

D/SI1 • GIA 1567014123

Certificate GIA 1567014123

Diamond specifications and retailer prices

From $3,123 USD
As of November 6, 2026
Save $1,275 USD (29%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,398 USD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 1567014123. Listed at 7 retailers as of October 31, 2026, with prices from $3,123 to $4,398, a $1,275 spread on the same certified stone. Blue Nile lists it at $4,398. 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
D
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1567014123
Dimensions7.47 × 5.67 × 3.68 mm
L/W Ratio1.32
Top View
7.47 mm5.67 mm1.21 ctD / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567014123
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,398 USD|Low: $3,110 USD|High: $4,440 USD|Avg: $3,659 USD|-0.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$3,123 USD
Retailer 2$3,125 USD
Retailer 3$3,136 USD
Retailer 5$3,819 USD
Retailer 4$3,950 USD
Retailer 7$4,178 USD
Blue Nile$4,398 USD

44 data points across 7 retailers

7 retailers$3,123 USD to $4,398 USD

B+
Cheapest Retailer
-
$3,123 USD
Final sale: no returns
B+
Retailer 2
-
$3,125 USD
View
B+
Retailer 3
-
$3,136 USD
View
B+
Retailer 4
-
$3,819 USD
View
Retailer 5
-
$3,950 USD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$4,178 USD
View
Most Expensive
B
Blue Nile
30380913 · Oct 31
$4,398 USD
View
6 more retailers have this diamond
Prices start from $3,123 USDSave up to $1,275 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+
1.21ct Cushion
$3,123 USD