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Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6385370928

Certificate GIA 6385370928

Diamond specifications and retailer prices

From $2,256 SGD
As of November 4, 2026
Save $2,683 SGD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,938 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6385370928. Listed at 21 retailers as of November 4, 2026, with prices from $2,256 to $4,938, a $2,683 spread on the same certified stone. MOH London lists it at $4,938. 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

1.00
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6385370928
Dimensions6.68 × 5.35 × 3.55 mm
L/W Ratio1.25
Top View
6.68 mm5.35 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6385370928
Side View
Table 60.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 66.3%

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 4
Current: $4,938 SGD|Low: $1,970 SGD|High: $5,011 SGD|Avg: $3,098 SGD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$1,970 SGD
Retailer 6$2,256 SGD
Retailer 7$2,561 SGD
Retailer 2$2,741 SGD
Retailer 8$2,904 SGD
Retailer 4$3,071 SGD
Retailer 5$3,449 SGD
Retailer 9$3,474 SGD
Retailer 3$3,509 SGD
MOH London$4,938 SGD

41 data points across 10 retailers

21 retailers$2,256 SGD to $4,938 SGD

B+
Cheapest Retailer
-
$2,256 SGD
B+
Retailer 2
-
$2,297 SGD
View
B+
Retailer 3
-
$2,313 SGD
View
B+
Retailer 4
-
$2,406 SGD
View
B+
Retailer 5
-
$2,408 SGD
View
B+
Retailer 6
-
$2,470 SGD
View
Retailer 7
-
$2,561 SGD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$2,608 SGD
View
B+
Retailer 9
-
$2,639 SGD
View
B+
Retailer 10
-
$2,741 SGD
View
B
Retailer 11
-
$2,814 SGD
View
B
Retailer 12
-
$2,904 SGD
View
B
Retailer 13
-
$2,973 SGD
View
B
Retailer 14
-
$2,973 SGD
View
B
Retailer 15
-
$3,071 SGD
View
B
Retailer 16
-
$3,076 SGD
View
B
Retailer 17
-
$3,449 SGD
View
Retailer 18
-
$3,474 SGD
View
Price last confirmed 32 days ago
B
Retailer 19
-
$3,509 SGD
View
B
Retailer 20
-
$4,060 SGD
View
Most Expensive
B
MOH London
4AE842D31 · Nov 4
$4,938 SGD
£3,034 GBP
View
20 more retailers have this diamond
Prices start from $2,256 SGDSave up to $2,683 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+
1.00ct Cushion
$2,256 SGD