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Cushion|Natural|GIA

1.30ct J SI1 Cushion Natural Diamond

J/SI1 • GIA 1545424189

Certificate GIA 1545424189

Diamond specifications and retailer prices

From $3,120 USD
As of November 6, 2026
Save $2,060 USD (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,180 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 J colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA 1545424189. Listed at 7 retailers as of November 4, 2026, with prices from $3,120 to $5,180, a $2,060 spread on the same certified stone. MOH London lists it at $5,180. 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

1.30
Carat
J
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545424189
Dimensions8.71 × 5.98 × 2.90 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cavity
Top View
8.71 mm5.98 mm1.30 ctJ / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545424189
Side View
Table 54.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 48.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,180 USD|Low: $2,739 USD|High: $5,743 USD|Avg: $3,557 USD|-9.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$2,739 USD
Retailer 8$3,062 USD
Retailer 6$3,119 USD
Retailer 4$3,120 USD
Retailer 5$3,248 USD
Retailer 7$3,344 USD
Retailer 2$3,615 USD
Retailer 10$3,682 USD
Retailer 3$3,790 USD
MOH London$5,180 USD

36 data points across 10 retailers

7 retailers$3,120 USD to $5,180 USD

Retailer 1
-
$3,119 USD
Price last confirmed 9 days ago
B
Retailer 2
-
$3,120 USD
View
B
Retailer 3
-
$3,248 USD
View
Retailer 4
-
$3,344 USD
View
Price last confirmed 34 days ago
B
Retailer 5
-
$3,615 USD
View
B
Retailer 6
-
$3,790 USD
View
Most Expensive
C
MOH London
D7D5E6E54 · Nov 4
$5,180 USD
£4,079 GBP
View
6 more retailers have this diamond
Prices start from $3,120 USDSave up to $2,060 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
1.30ct Cushion
$3,120 USD