Cushion|Natural|GIA

1.00ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 1428230770

Certificate GIA 1428230770

Diamond specifications and retailer prices

From $1,895 USD
As of November 5, 2026
Save $2,180 USD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,075 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1428230770. Listed at 20 retailers as of November 2, 2026, with prices from $1,895 to $4,075, a $2,180 spread on the same certified stone. MOH London lists it at $4,075. 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
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1428230770
Dimensions5.77 × 5.26 × 3.75 mm
L/W Ratio1.10
Key to symbols
Cloud, Feather, Crystal, Needle, Indented Natural
Top View
5.77 mm5.26 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1428230770
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 71.4%

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 5
Current: $4,075 USD|Low: $1,621 USD|High: $4,125 USD|Avg: $2,582 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10$1,901 USD
Retailer 3$1,904 USD
Retailer 7$1,945 USD
Retailer 9$1,960 USD
Retailer 6$2,107 USD
Retailer 2$2,528 USD
Retailer 5$2,839 USD
Retailer 8$2,863 USD
Retailer 4$2,888 USD
MOH London$4,075 USD

46 data points across 10 retailers

20 retailers$1,895 USD to $4,075 USD

A
Cheapest Retailer
-
$1,895 USD
A
Retailer 2
-
$1,900 USD
View
A
Retailer 3
-
$1,901 USD
View
A
Retailer 4
-
$1,904 USD
View
A
Retailer 5
-
$1,945 USD
View
Final sale: no returns
Retailer 6
-
$1,960 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
$1,975 USD
View
A
Retailer 8
-
$1,983 USD
View
B+
Retailer 9
-
$2,051 USD
View
Retailer 10
-
$2,107 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$2,130 USD
View
B+
Retailer 12
-
$2,311 USD
View
B+
Retailer 13
-
$2,440 USD
View
B+
Retailer 14
-
$2,440 USD
View
B+
Retailer 15
-
$2,520 USD
View
B+
Retailer 16
-
$2,528 USD
View
B
Retailer 17
-
$2,839 USD
View
Retailer 18
-
$2,863 USD
View
Price last confirmed 31 days ago
B
Retailer 19
-
$2,888 USD
View
Most Expensive
B
MOH London
22B3F1456 · Nov 2
$4,075 USD
£3,209 GBP
View
19 more retailers have this diamond
Prices start from $1,895 USDSave up to $2,180 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
$1,895 USD