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Cushion|Natural|GIA

1.00ct I SI2 Cushion Natural Diamond

GD • I/SI2 • GIA 1559983627

Certificate GIA 1559983627

Diamond specifications and retailer prices

From $894 USD
As of November 2, 2026
Save $1,290 USD (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,184 USD at MOH London · As of November 2, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1559983627. Listed at 14 retailers as of November 2, 2026, with prices from $894 to $2,184, a $1,290 spread on the same certified stone. MOH London lists it at $2,184. 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
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1559983627
Dimensions6.58 × 5.08 × 3.55 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.58 mm5.08 mm1.00 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1559983627
Side View
Table 59.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 69.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,184 USD|Low: $894 USD|High: $2,207 USD|Avg: $1,296 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 8$894 USD
Retailer 10$1,011 USD
Retailer 4$1,100 USD
Retailer 9$1,150 USD
Retailer 11$1,159 USD
Retailer 5$1,177 USD
Retailer 3$1,231 USD
Retailer 7$1,296 USD
Retailer 12$1,304 USD
Retailer 2$1,346 USD
Retailer 6$1,661 USD
MOH London$2,184 USD

23 data points across 12 retailers

14 retailers$894 USD to $2,184 USD

A
Cheapest Retailer
-
$894 USD
B+
Retailer 2
-
$1,011 USD
View
B+
Retailer 3
-
$1,100 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,150 USD
View
B+
Retailer 5
-
$1,159 USD
View
B+
Retailer 6
-
$1,177 USD
View
Retailer 7
-
$1,192 USD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
$1,231 USD
View
B+
Retailer 9
-
$1,296 USD
View
B+
Retailer 10
-
$1,304 USD
View
B+
Retailer 11
-
$1,318 USD
View
B+
Retailer 12
-
$1,346 USD
View
B+
Retailer 13
-
$1,661 USD
View
Most Expensive
B
MOH London
49A69BAE9 · Nov 2
$2,184 USD
£1,720 GBP
View
13 more retailers have this diamond
Prices start from $894 USDSave up to $1,290 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.

A
1.00ct Cushion
$894 USD