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Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6372934021

Certificate GIA 6372934021

Diamond specifications and retailer prices

From $2,753 SGD
As of November 6, 2026
Save $1,533 SGD (36%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,286 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6372934021. Listed at 18 retailers as of November 6, 2026, with prices from $2,753 to $4,286, a $1,533 spread on the same certified stone. Washington Diamond lists it at $4,286. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

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

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6372934021
Dimensions5.62 × 5.39 × 3.71 mm
L/W Ratio1.04
Top View
5.62 mm5.39 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6372934021
Side View
Table 64.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 68.9%

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: $4,027 SGD|Low: $2,676 SGD|High: $4,286 SGD|Avg: $3,158 SGD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Washington Diamond
November 6, 2026
Retailer 8$2,676 SGD
Retailer 4$2,753 SGD
Retailer 7$2,926 SGD
Retailer 2$2,932 SGD
Retailer 6$3,225 SGD
Retailer 5$3,346 SGD
Retailer 3$3,387 SGD
Retailer 1$4,027 SGD
Washington Diamond$4,286 SGD

43 data points across 9 retailers

18 retailers$2,753 SGD to $4,286 SGD

B+
Cheapest Retailer
-
$2,753 SGD
B+
Retailer 2
-
$2,791 SGD
View
B+
Retailer 3
-
$2,804 SGD
View
B+
Retailer 4
-
$2,890 SGD
View
B+
Retailer 5
-
$2,926 SGD
View
B+
Retailer 6
-
$2,932 SGD
View
B+
Retailer 7
-
$2,984 SGD
View
B+
Retailer 8
-
$3,050 SGD
View
B
Retailer 9
-
$3,225 SGD
View
B
Retailer 10
-
$3,346 SGD
View
B+
Retailer 11
-
$3,383 SGD
View
B+
Retailer 12
-
$3,387 SGD
View
B
Retailer 13
-
$3,409 SGD
View
B
Retailer 14
-
$3,409 SGD
View
B
Retailer 15
-
$3,410 SGD
View
B
Retailer 16
-
$3,512 SGD
View
B
Retailer 17
-
$4,027 SGD
View
Most Expensive
Washington Diamond
1917992655 · Nov 6
$4,286 SGD
$3,344 USD
View
17 more retailers have this diamond
Prices start from $2,753 SGDSave up to $1,533 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
$2,753 SGD