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Cushion|Natural|GIA

1.21ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2146385865

Certificate GIA 2146385865

Diamond specifications and retailer prices

From $4,104 AUD
As of November 4, 2026
Save $4,809 AUD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,913 AUD 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 $4,104 to $8,913, a $4,809 spread on the same certified stone. MOH London lists it at $8,913. 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
Colour
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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $8,913 AUD|Low: $4,162 AUD|High: $9,044 AUD|Avg: $5,571 AUD|-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$4,162 AUD
Retailer 5$4,206 AUD
Retailer 9$4,587 AUD
Retailer 6$4,841 AUD
Retailer 7$5,194 AUD
Retailer 4$5,533 AUD
Retailer 2$5,870 AUD
Retailer 3$6,522 AUD
MOH London$8,913 AUD

42 data points across 9 retailers

15 retailers$4,104 AUD to $8,913 AUD

B
Cheapest Retailer
-
$4,104 AUD
B
Retailer 2
-
$4,162 AUD
View
B
Retailer 3
-
$4,206 AUD
View
B
Retailer 4
-
$4,280 AUD
View
B
Retailer 5
-
$4,298 AUD
View
B
Retailer 6
-
$4,587 AUD
View
B
Retailer 7
-
$4,679 AUD
View
Retailer 8
-
$4,841 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$5,194 AUD
View
B
Retailer 10
-
$5,261 AUD
View
B
Retailer 11
-
$5,533 AUD
View
B
Retailer 12
-
$5,870 AUD
View
Retailer 13
-
$6,052 AUD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$6,522 AUD
View
Most Expensive
B
MOH London
AF4BE3DF8 · Nov 4
$8,913 AUD
£4,822 GBP
View
14 more retailers have this diamond
Prices start from $4,104 AUDSave up to $4,809 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.

B
1.21ct Cushion
$4,104 AUD