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Cushion|Natural|GIA

0.78ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6555739359

Certificate GIA 6555739359

Diamond specifications and retailer prices

From $1,293 CAD
$924 USD
As of October 30, 2026
Save $488 CAD (27%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,781 CAD at GemTrove · As of October 29, 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 D 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 6555739359. Listed at 5 retailers as of October 29, 2026, with prices from $1,293 to $1,781, a $488 spread on the same certified stone. GemTrove lists it at $1,781. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555739359
Dimensions5.13 × 5.01 × 3.41 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal
Top View
5.13 mm5.01 mm0.78 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555739359
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,781 CAD|Low: $1,271 CAD|High: $1,781 CAD|Avg: $1,455 CAD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 3$1,293 CAD
Retailer 5$1,331 CAD
Retailer 2$1,340 CAD
Retailer 4$1,457 CAD
GemTrove$1,781 CAD

39 data points across 5 retailers

5 retailers$1,293 CAD to $1,781 CAD

A
Cheapest Retailer
-
$1,293 CAD
$924 USD
A
Retailer 2
-
$1,331 CAD
SGD 1,285 SGD
View
A
Retailer 3
-
$1,340 CAD
£754 GBP
View
A
Retailer 4
-
$1,457 CAD
$1,041 USD
View
Most Expensive
B+
GemTrove
GT-N-00957446-98 · Oct 29
$1,781 CAD
A$1,958 AUD
View
4 more retailers have this diamond
Prices start from $1,293 CADSave up to $488 CAD

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
$1,293 CAD