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Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6375936754

Certificate GIA 6375936754

Diamond specifications and retailer prices

From $2,618 SGD
As of November 6, 2026
Save $1,434 SGD (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,052 SGD at Washington Diamond · As of November 6, 2026
View at Washington Diamond

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 6375936754. Listed at 17 retailers as of November 6, 2026, with prices from $2,618 to $4,052, a $1,434 spread on the same certified stone. Washington Diamond lists it at $4,052. 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 6375936754
Dimensions5.57 × 5.30 × 3.85 mm
L/W Ratio1.05
Top View
5.57 mm5.30 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6375936754
Side View
Table 64.0%CrownGirdle: - SPavilionCulet: NoneDepth 72.7%

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: $3,806 SGD|Low: $2,543 SGD|High: $4,052 SGD|Avg: $3,001 SGD|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Washington Diamond
November 6, 2026
Retailer 14$2,543 SGD
Retailer 10$2,618 SGD
Retailer 8$2,639 SGD
Retailer 7$2,650 SGD
Retailer 13$2,766 SGD
Retailer 9$2,772 SGD
Retailer 15$2,845 SGD
Retailer 4$2,896 SGD
Retailer 12$3,049 SGD
Retailer 11$3,172 SGD
Retailer 6$3,199 SGD
Retailer 2$3,217 SGD
Retailer 3$3,217 SGD
Retailer 5$3,223 SGD
Retailer 16$3,332 SGD
Retailer 1$3,806 SGD
Washington Diamond$4,052 SGD

23 data points across 17 retailers

17 retailers$2,618 SGD to $4,052 SGD

B+
Cheapest Retailer
-
$2,618 SGD
B+
Retailer 2
-
$2,639 SGD
View
B+
Retailer 3
-
$2,650 SGD
View
B+
Retailer 4
-
$2,740 SGD
View
B+
Retailer 5
-
$2,766 SGD
View
B+
Retailer 6
-
$2,772 SGD
View
B
Retailer 7
-
$2,845 SGD
View
B
Retailer 8
-
$2,896 SGD
View
B
Retailer 9
-
$3,049 SGD
View
B
Retailer 10
-
$3,172 SGD
View
B
Retailer 11
-
$3,199 SGD
View
B
Retailer 12
-
$3,217 SGD
View
B
Retailer 13
-
$3,217 SGD
View
B
Retailer 14
-
$3,223 SGD
View
B
Retailer 15
-
$3,332 SGD
View
B
Retailer 16
-
$3,806 SGD
View
Most Expensive
Washington Diamond
1917992653 · Nov 6
$4,052 SGD
$3,162 USD
View
16 more retailers have this diamond
Prices start from $2,618 SGDSave up to $1,434 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
$2,618 SGD