Cushion|Natural|GIA

1.15ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 6512646165

Certificate GIA 6512646165

Diamond specifications and retailer prices

From $2,765 USD
A$4,254 AUD
As of November 1, 2026
Save $2,769 USD (50%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,535 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.15ct natural cushion diamond

This 1.15ct natural cushion sits in the classic one-carat band, graded J 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 6512646165. Listed at 8 retailers as of October 26, 2026, with prices from $2,765 to $5,535, a $2,769 spread on the same certified stone. MOH London lists it at $5,535. 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

1.15
Carat
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6512646165
Dimensions7.04 × 5.24 × 3.45 mm
L/W Ratio1.34
Girdle conditionFaceted
Key to symbols
Crystal, Pinpoint
Top View
7.04 mm5.24 mm1.15 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6512646165
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,535 USD|Low: $2,972 USD|High: $5,594 USD|Avg: $3,727 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$3,012 USD
Retailer 4$3,015 USD
Retailer 3$3,454 USD
Retailer 5$3,531 USD
Retailer 2$3,868 USD
MOH London$5,535 USD

43 data points across 6 retailers

8 retailers$2,765 USD to $5,535 USD

B
Cheapest Retailer
-
$2,765 USD
A$4,254 AUD
B
Retailer 2
-
$3,012 USD
View
B
Retailer 3
-
$3,015 USD
View
B
Retailer 4
-
$3,454 USD
£2,720 GBP
View
Retailer 5
-
$3,531 USD
A$5,432 AUD
View
Price last confirmed 25 days ago
C
Retailer 6
-
$3,662 USD
View
C
Retailer 7
-
$3,868 USD
€3,684 EUR
View
Most Expensive
C
MOH London
C085340B7 · Oct 26
$5,535 USD
£4,358 GBP
View
7 more retailers have this diamond
Prices start from $2,765 USDSave up to $2,769 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
1.15ct Cushion
$2,765 USD