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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 $1,181 SGD
$924 USD
As of November 1, 2026
Save $446 SGD (27%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,627 SGD at GemTrove · As of November 1, 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 November 1, 2026, with prices from $1,181 to $1,627, a $446 spread on the same certified stone. GemTrove lists it at $1,627. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,627 SGD|Low: $1,161 SGD|High: $1,627 SGD|Avg: $1,328 SGD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 3$1,181 SGD
Retailer 5$1,216 SGD
Retailer 2$1,226 SGD
Retailer 4$1,331 SGD
GemTrove$1,627 SGD

38 data points across 5 retailers

5 retailers$1,181 SGD to $1,627 SGD

A
Cheapest Retailer
-
$1,181 SGD
$924 USD
A
Retailer 2
-
$1,216 SGD
View
A
Retailer 3
-
$1,226 SGD
£755 GBP
View
A
Retailer 4
-
$1,331 SGD
$1,041 USD
View
Most Expensive
B+
GemTrove
GT-N-00957446-98 · Nov 1
$1,627 SGD
A$1,958 AUD
View
4 more retailers have this diamond
Prices start from $1,181 SGDSave up to $446 SGD

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
$1,181 SGD