Cushion|Natural|GIA

1.21ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2146385865

Certificate GIA 2146385865

Diamond specifications and retailer prices

From $2,820 USD
As of November 4, 2026
Save $3,304 USD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,124 USD 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2146385865. Listed at 15 retailers as of November 4, 2026, with prices from $2,820 to $6,124, a $3,304 spread on the same certified stone. MOH London lists it at $6,124. 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
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2146385865
Dimensions5.96 × 5.78 × 4.03 mm
L/W Ratio1.03
Culet sizeNone
Top View
5.96 mm5.78 mm1.21 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2146385865
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $6,124 USD|Low: $2,860 USD|High: $6,214 USD|Avg: $3,828 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$2,860 USD
Retailer 5$2,890 USD
Retailer 9$3,152 USD
Retailer 6$3,326 USD
Retailer 7$3,569 USD
Retailer 4$3,802 USD
Retailer 2$4,033 USD
Retailer 3$4,481 USD
MOH London$6,124 USD

42 data points across 9 retailers

15 retailers$2,820 USD to $6,124 USD

B
Cheapest Retailer
-
$2,820 USD
B
Retailer 2
-
$2,860 USD
View
B
Retailer 3
-
$2,890 USD
View
B
Retailer 4
-
$2,941 USD
View
B
Retailer 5
-
$2,953 USD
View
B
Retailer 6
-
$3,152 USD
View
B
Retailer 7
-
$3,215 USD
View
Retailer 8
-
$3,326 USD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$3,569 USD
View
B
Retailer 10
-
$3,615 USD
View
B
Retailer 11
-
$3,802 USD
View
B
Retailer 12
-
$4,033 USD
View
Retailer 13
-
$4,158 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$4,481 USD
View
Most Expensive
B
MOH London
AF4BE3DF8 · Nov 4
$6,124 USD
£4,822 GBP
View
14 more retailers have this diamond
Prices start from $2,820 USDSave up to $3,304 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
$2,820 USD