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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 6555036647

Certificate GIA 6555036647

Diamond specifications and retailer prices

From $3,929 SGD
As of November 6, 2026
Save $4,661 SGD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,591 SGD at MOH London · As of November 2, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555036647. Listed at 19 retailers as of November 2, 2026, with prices from $3,929 to $8,591, a $4,661 spread on the same certified stone. MOH London lists it at $8,591. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555036647
Dimensions7.40 × 5.49 × 3.76 mm
L/W Ratio1.35
Top View
7.40 mm5.49 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555036647
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.5%

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: $8,591 SGD|Low: $3,929 SGD|High: $8,695 SGD|Avg: $5,445 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 5$3,929 SGD
Retailer 12$4,132 SGD
Retailer 11$4,296 SGD
Retailer 3$4,370 SGD
Retailer 13$4,466 SGD
Retailer 9$4,653 SGD
Retailer 6$5,116 SGD
Retailer 2$5,216 SGD
Retailer 4$5,507 SGD
Retailer 7$5,780 SGD
Retailer 8$6,270 SGD
Retailer 10$7,423 SGD
MOH London$8,591 SGD

46 data points across 13 retailers

19 retailers$3,929 SGD to $8,591 SGD

B+
Cheapest Retailer
-
$3,929 SGD
B
Retailer 2
-
$3,947 SGD
View
B+
Retailer 3
-
$4,132 SGD
View
B
Retailer 4
-
$4,296 SGD
View
Final sale: no returns
B
Retailer 5
-
$4,370 SGD
View
B
Retailer 6
-
$4,466 SGD
View
Retailer 7
-
$4,653 SGD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$4,973 SGD
View
B
Retailer 9
-
$5,061 SGD
View
B
Retailer 10
-
$5,116 SGD
View
B
Retailer 11
-
$5,216 SGD
View
B
Retailer 12
-
$5,267 SGD
View
B
Retailer 13
-
$5,267 SGD
View
B
Retailer 14
-
$5,434 SGD
View
Retailer 15
-
$5,507 SGD
View
Price last confirmed 34 days ago
B
Retailer 16
-
$5,780 SGD
View
B
Retailer 17
-
$6,270 SGD
View
B
Retailer 18
-
$7,423 SGD
View
Most Expensive
B
MOH London
61E79E120 · Nov 2
$8,591 SGD
£5,278 GBP
View
18 more retailers have this diamond
Prices start from $3,929 SGDSave up to $4,661 SGD

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
$3,929 SGD