Cushion|Natural|GIA

1.30ct G SI1 Cushion Natural Diamond

ID • G/SI1 • GIA 7426459003

Certificate GIA 7426459003

Diamond specifications and retailer prices

From $3,875 USD
As of November 6, 2026
Save $4,235 USD (52%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,110 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7426459003. Listed at 11 retailers as of November 4, 2026, with prices from $3,875 to $8,110, a $4,235 spread on the same certified stone. MOH London lists it at $8,110. 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

1.30
Carat
G
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7426459003
Dimensions6.38 × 5.87 × 4.07 mm
L/W Ratio1.09
Top View
6.38 mm5.87 mm1.30 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7426459003
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.2%

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: $8,110 USD|Low: $3,875 USD|High: $8,230 USD|Avg: $5,216 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$3,875 USD
Retailer 8$4,034 USD
Retailer 5$4,625 USD
Retailer 6$4,895 USD
Retailer 2$5,027 USD
Retailer 4$5,146 USD
Retailer 3$5,754 USD
MOH London$8,110 USD

44 data points across 8 retailers

11 retailers$3,875 USD to $8,110 USD

A
Cheapest Retailer
-
$3,875 USD
B+
Retailer 2
-
$4,034 USD
View
B+
Retailer 3
-
$4,344 USD
View
B+
Retailer 4
-
$4,592 USD
View
Retailer 5
-
$4,625 USD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$4,895 USD
View
B+
Retailer 7
-
$5,027 USD
View
Retailer 8
-
$5,146 USD
View
Price last confirmed 29 days ago
Retailer 9
-
$5,636 USD
View
Price last confirmed 15 days ago
B
Retailer 10
-
$5,754 USD
View
Most Expensive
B
MOH London
FB5C5F0BE · Nov 4
$8,110 USD
£6,386 GBP
View
10 more retailers have this diamond
Prices start from $3,875 USDSave up to $4,235 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
1.30ct Cushion
$3,875 USD