Cushion|Natural|GIA

1.00ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1226075838

Certificate GIA 1226075838

Diamond specifications and retailer prices

From $2,489 USD
As of November 4, 2026
Save $2,924 USD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,413 USD 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1226075838. Listed at 18 retailers as of November 4, 2026, with prices from $2,489 to $5,413, a $2,924 spread on the same certified stone. MOH London lists it at $5,413. 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1226075838
Dimensions5.93 × 5.72 × 3.84 mm
L/W Ratio1.04
Culet sizeNone
Top View
5.93 mm5.72 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1226075838
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,413 USD|Low: $2,489 USD|High: $5,493 USD|Avg: $3,219 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$2,489 USD
Retailer 7$2,543 USD
Retailer 4$2,560 USD
Retailer 8$2,761 USD
Retailer 5$2,940 USD
Retailer 6$3,174 USD
Retailer 3$3,337 USD
Retailer 2$3,561 USD
MOH London$5,413 USD

44 data points across 9 retailers

18 retailers$2,489 USD to $5,413 USD

B+
Cheapest Retailer
-
$2,489 USD
B
Retailer 2
-
$2,543 USD
View
B+
Retailer 3
-
$2,560 USD
View
B
Retailer 4
-
$2,600 USD
View
B
Retailer 5
-
$2,632 USD
View
B+
Retailer 6
-
$2,716 USD
View
B
Retailer 7
-
$2,761 USD
View
Retailer 8
-
$2,940 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$3,002 USD
View
B
Retailer 10
-
$3,174 USD
View
B
Retailer 11
-
$3,192 USD
View
B
Retailer 12
-
$3,337 USD
View
B
Retailer 13
-
$3,350 USD
View
B
Retailer 14
-
$3,350 USD
View
B
Retailer 15
-
$3,460 USD
View
B
Retailer 16
-
$3,561 USD
View
Retailer 17
-
$3,765 USD
View
Price last confirmed 14 days ago
Most Expensive
B
MOH London
8A63291A6 · Nov 4
$5,413 USD
£4,262 GBP
View
17 more retailers have this diamond
Prices start from $2,489 USDSave up to $2,924 USD

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
$2,489 USD