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Cushion|Natural|GIA

0.78ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 3215039518

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 3215039518

Diamond specifications and retailer prices

From $5,109 AUD
$3,589 USD
As of October 31, 2026
Save $3,316 AUD (39%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,425 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct natural cushion diamond

This 0.78ct natural cushion sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3215039518. Listed at 5 retailers as of October 29, 2026, with prices from $5,109 to $8,425, a $3,316 spread on the same certified stone. MOH London lists it at $8,425. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3215039518
Dimensions5.28 × 5.19 × 3.55 mm
L/W Ratio1.02
Top View
5.28 mm5.19 mm0.78 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3215039518
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.3%

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: Oct 31
Current: $8,425 AUD|Low: $4,160 AUD|High: $8,481 AUD|Avg: $5,747 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 6$4,160 AUD
Retailer 3$5,236 AUD
Retailer 4$5,372 AUD
Retailer 5$5,677 AUD
Retailer 2$5,867 AUD
MOH London$8,425 AUD

44 data points across 6 retailers

5 retailers$5,109 AUD to $8,425 AUD

B
Cheapest Retailer
-
$5,109 AUD
$3,589 USD
B
Retailer 2
-
$5,236 AUD
£2,896 GBP
View
Retailer 3
-
$5,372 AUD
View
Price last confirmed 27 days ago
B
Retailer 4
-
$5,867 AUD
€3,925 EUR
View
Most Expensive
B
MOH London
A3C068E25 · Oct 29
$8,425 AUD
£4,660 GBP
View
4 more retailers have this diamond
Prices start from $5,109 AUDSave up to $3,316 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
0.78ct Cushion
$5,109 AUD