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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 €1,144 EUR
As of November 4, 2026
Save €1,242 EUR (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €2,385 EUR 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 €1,144 to €2,385, a €1,242 spread on the same certified stone. MOH London lists it at €2,385. 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
Colour
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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Price History

Last verified: Nov 4
Current: €2,385 EUR|Low: €1,326 EUR|High: €2,415 EUR|Avg: €1,725 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5€1,326 EUR
Retailer 6€1,368 EUR
Retailer 3€1,504 EUR
Retailer 2€1,756 EUR
Retailer 4€2,033 EUR
MOH London€2,385 EUR

43 data points across 6 retailers

9 retailers€1,144 EUR to €2,385 EUR

B
Cheapest Retailer
-
€1,144 EUR
B
Retailer 2
-
€1,172 EUR
View
B
Retailer 3
-
€1,326 EUR
View
B
Retailer 4
-
€1,368 EUR
View
B
Retailer 5
-
€1,504 EUR
View
B
Retailer 6
-
€1,547 EUR
View
B
Retailer 7
-
€1,756 EUR
View
B
Retailer 8
-
€2,033 EUR
View
Most Expensive
B
MOH London
CECA453E8 · Nov 2
€2,385 EUR
£2,097 GBP
View
8 more retailers have this diamond
Prices start from €1,144 EURSave up to €1,242 EUR

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
€1,144 EUR