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Cushion|Natural|GIA

0.78ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5553059681

Certificate GIA 5553059681

Diamond specifications and retailer prices

From $985 AUD
$692 USD
As of October 31, 2026
Save $577 AUD (37%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,562 AUD at GemTrove · As of October 31, 2026
View at GemTrove

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 5553059681. Listed at 9 retailers as of October 31, 2026, with prices from $985 to $1,562, a $577 spread on the same certified stone. GemTrove lists it at $1,562. 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553059681
Dimensions5.17 × 5.05 × 3.43 mm
L/W Ratio1.02
Top View
5.17 mm5.05 mm0.78 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553059681
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.0%

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: Oct 31
Current: $1,562 AUD|Low: $871 AUD|High: $1,562 AUD|Avg: $1,246 AUD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$934 AUD
Retailer 8$985 AUD
Retailer 5$1,186 AUD
Retailer 7$1,219 AUD
Retailer 6$1,231 AUD
Retailer 2$1,285 AUD
Retailer 3$1,324 AUD
Retailer 9$1,324 AUD
Retailer 4$1,367 AUD
GemTrove$1,562 AUD

34 data points across 10 retailers

9 retailers$985 AUD to $1,562 AUD

A
Cheapest Retailer
-
$985 AUD
$692 USD
Final sale: no returns
A
Retailer 2
-
$1,186 AUD
$833 USD
View
A
Retailer 3
-
$1,219 AUD
SGD 1,157 SGD
View
A
Retailer 4
-
$1,231 AUD
$865 USD
View
A
Retailer 5
-
$1,285 AUD
£711 GBP
View
A
Retailer 6
-
$1,324 AUD
$930 USD
View
A
Retailer 7
-
$1,324 AUD
$930 USD
View
A
Retailer 8
-
$1,367 AUD
$960 USD
View
Most Expensive
A
GemTrove
GT-N-00957436-98 · Oct 31
$1,562 AUD
View
8 more retailers have this diamond
Prices start from $985 AUDSave up to $577 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
$985 AUD