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Cushion|Natural|GIA

0.78ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 2235707673

Certificate GIA 2235707673

Diamond specifications and retailer prices

From $1,110 AUD
As of November 6, 2026
Save $453 AUD (29%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,563 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.78ct natural cushion diamond

This 0.78ct natural cushion sits in the just-under-one-carat band, graded J 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 2235707673. Listed at 3 retailers as of November 6, 2026, with prices from $1,110 to $1,563, a $453 spread on the same certified stone. 77 Diamonds lists it at $1,563. 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

0.78
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235707673
Dimensions5.52 × 5.29 × 3.58 mm
L/W Ratio1.04
Top View
5.52 mm5.29 mm0.78 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235707673
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.7%

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: $1,563 AUD|Low: $1,110 AUD|High: $1,582 AUD|Avg: $1,297 AUD|+1.3%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$1,110 AUD
Retailer 2$1,205 AUD
77 Diamonds$1,563 AUD

37 data points across 3 retailers

3 retailers$1,110 AUD to $1,563 AUD

A
Cheapest Retailer
-
$1,110 AUD
A
Retailer 2
-
$1,205 AUD
View
Most Expensive
B+
77 Diamonds
CUSMB8VS8JNMH · Nov 6
$1,563 AUD
£846 GBP
View
2 more retailers have this diamond
Prices start from $1,110 AUDSave up to $453 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.

A
0.78ct Cushion
$1,110 AUD