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Cushion|Natural|GIA

1.15ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 6512646165

Certificate GIA 6512646165

Diamond specifications and retailer prices

From $3,946 AUD
As of November 2, 2026
Save $3,941 AUD (50%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,887 AUD at MOH London · As of November 2, 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 November 2, 2026, with prices from $3,946 to $7,887, a $3,941 spread on the same certified stone. MOH London lists it at $7,887. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $7,887 AUD|Low: $4,241 AUD|High: $7,983 AUD|Avg: $5,325 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$4,298 AUD
Retailer 4$4,302 AUD
Retailer 3$4,928 AUD
Retailer 5$5,038 AUD
Retailer 2$5,520 AUD
MOH London$7,887 AUD

42 data points across 6 retailers

8 retailers$3,946 AUD to $7,887 AUD

B
Cheapest Retailer
-
$3,946 AUD
B
Retailer 2
-
$4,298 AUD
$3,012 USD
View
B
Retailer 3
-
$4,302 AUD
$3,015 USD
View
B
Retailer 4
-
$4,928 AUD
£2,720 GBP
View
Retailer 5
-
$5,038 AUD
View
Price last confirmed 26 days ago
C
Retailer 6
-
$5,225 AUD
$3,662 USD
View
C
Retailer 7
-
$5,520 AUD
€3,684 EUR
View
Most Expensive
C
MOH London
C085340B7 · Nov 2
$7,887 AUD
£4,352 GBP
View
7 more retailers have this diamond
Prices start from $3,946 AUDSave up to $3,941 AUD

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
$3,946 AUD