Cushion|Natural|GIA

1.00ct G SI2 Cushion Natural Diamond

VG • G/SI2 • GIA 1528811405

Certificate GIA 1528811405

Diamond specifications and retailer prices

From $1,407 SGD
As of November 6, 2026
Save $1,907 SGD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,314 SGD 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1528811405. Listed at 12 retailers as of November 2, 2026, with prices from $1,407 to $3,314, a $1,907 spread on the same certified stone. MOH London lists it at $3,314. 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
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1528811405
Dimensions6.80 × 5.22 × 3.52 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
6.80 mm5.22 mm1.00 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1528811405
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.5%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $3,314 SGD|Low: $1,407 SGD|High: $3,442 SGD|Avg: $2,038 SGD|-3.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,407 SGD
Retailer 10$1,484 SGD
Retailer 11$1,658 SGD
Retailer 9$1,752 SGD
Retailer 4$1,860 SGD
Retailer 8$1,993 SGD
Retailer 3$2,065 SGD
Retailer 6$2,088 SGD
Retailer 7$2,093 SGD
Retailer 5$2,620 SGD
MOH London$3,314 SGD

22 data points across 11 retailers

12 retailers$1,407 SGD to $3,314 SGD

A
Cheapest Retailer
-
$1,407 SGD
A
Retailer 2
-
$1,484 SGD
View
Final sale: no returns
A
Retailer 3
-
$1,658 SGD
View
A
Retailer 4
-
$1,752 SGD
View
A
Retailer 5
-
$1,860 SGD
View
A
Retailer 6
-
$1,993 SGD
View
A
Retailer 7
-
$2,065 SGD
View
A
Retailer 8
-
$2,080 SGD
View
A
Retailer 9
-
$2,088 SGD
View
A
Retailer 10
-
$2,093 SGD
View
B+
Retailer 11
-
$2,620 SGD
View
Most Expensive
B+
MOH London
063664E99 · Nov 2
$3,314 SGD
£2,036 GBP
View
11 more retailers have this diamond
Prices start from $1,407 SGDSave up to $1,907 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.

A
1.00ct Cushion
$1,407 SGD