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Cushion|Natural|GIA

0.78ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2215334678

Certificate GIA 2215334678

Diamond specifications and retailer prices

From $1,277 USD
As of November 4, 2026
Save $1,386 USD (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,663 USD at MOH London · As of November 2, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2215334678. Listed at 9 retailers as of November 2, 2026, with prices from $1,277 to $2,663, a $1,386 spread on the same certified stone. MOH London lists it at $2,663. 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
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2215334678
Dimensions9.67 × 4.66 × 2.94 mm
L/W Ratio2.08
Culet sizeNone
Top View
9.67 mm4.66 mm0.78 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 2215334678
Side View
Table 53.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,663 USD|Low: $1,480 USD|High: $2,696 USD|Avg: $1,926 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$1,480 USD
Retailer 6$1,527 USD
Retailer 3$1,679 USD
Retailer 2$1,961 USD
Retailer 4$2,270 USD
MOH London$2,663 USD

43 data points across 6 retailers

9 retailers$1,277 USD to $2,663 USD

B
Cheapest Retailer
-
$1,277 USD
B
Retailer 2
-
$1,308 USD
View
B
Retailer 3
-
$1,480 USD
View
B
Retailer 4
-
$1,527 USD
View
B
Retailer 5
-
$1,679 USD
View
B
Retailer 6
-
$1,727 USD
View
B
Retailer 7
-
$1,961 USD
View
B
Retailer 8
-
$2,270 USD
View
Most Expensive
B
MOH London
CECA453E8 · Nov 2
$2,663 USD
£2,097 GBP
View
8 more retailers have this diamond
Prices start from $1,277 USDSave up to $1,386 USD

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
$1,277 USD