Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6385370928

Certificate GIA 6385370928

Diamond specifications and retailer prices

From $1,760 USD
As of November 4, 2026
Save $2,093 USD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,853 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 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 $1,760 to $3,853, a $2,093 spread on the same certified stone. MOH London lists it at $3,853. 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
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: $3,853 USD|Low: $1,537 USD|High: $3,910 USD|Avg: $2,417 USD|-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$1,537 USD
Retailer 6$1,760 USD
Retailer 7$1,998 USD
Retailer 2$2,139 USD
Retailer 8$2,266 USD
Retailer 4$2,396 USD
Retailer 5$2,691 USD
Retailer 9$2,711 USD
Retailer 3$2,738 USD
MOH London$3,853 USD

41 data points across 10 retailers

21 retailers$1,760 USD to $3,853 USD

B+
Cheapest Retailer
-
$1,760 USD
B+
Retailer 2
-
$1,792 USD
View
B+
Retailer 3
-
$1,805 USD
View
B+
Retailer 4
-
$1,877 USD
View
B+
Retailer 5
-
$1,879 USD
View
B+
Retailer 6
-
$1,927 USD
View
Retailer 7
-
$1,998 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,035 USD
View
B+
Retailer 9
-
$2,059 USD
View
B+
Retailer 10
-
$2,139 USD
View
B
Retailer 11
-
$2,196 USD
View
B
Retailer 12
-
$2,266 USD
View
B
Retailer 13
-
$2,320 USD
View
B
Retailer 14
-
$2,320 USD
View
B
Retailer 15
-
$2,396 USD
View
B
Retailer 16
-
$2,400 USD
View
B
Retailer 17
-
$2,691 USD
View
Retailer 18
-
$2,711 USD
View
Price last confirmed 31 days ago
B
Retailer 19
-
$2,738 USD
View
B
Retailer 20
-
$3,168 USD
View
Most Expensive
B
MOH London
4AE842D31 · Nov 4
$3,853 USD
£3,034 GBP
View
20 more retailers have this diamond
Prices start from $1,760 USDSave up to $2,093 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
$1,760 USD