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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 $2,304 NZD
As of November 4, 2026
Save $2,501 NZD (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,804 NZD 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 $2,304 to $4,804, a $2,501 spread on the same certified stone. MOH London lists it at $4,804. 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,804 NZD|Low: $2,670 NZD|High: $4,864 NZD|Avg: $3,474 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$2,670 NZD
Retailer 6$2,755 NZD
Retailer 3$3,029 NZD
Retailer 2$3,537 NZD
Retailer 4$4,095 NZD
MOH London$4,804 NZD

43 data points across 6 retailers

9 retailers$2,304 NZD to $4,804 NZD

B
Cheapest Retailer
-
$2,304 NZD
B
Retailer 2
-
$2,360 NZD
View
B
Retailer 3
-
$2,670 NZD
View
B
Retailer 4
-
$2,755 NZD
View
B
Retailer 5
-
$3,029 NZD
View
B
Retailer 6
-
$3,115 NZD
View
B
Retailer 7
-
$3,537 NZD
View
B
Retailer 8
-
$4,095 NZD
View
Most Expensive
B
MOH London
CECA453E8 · Nov 2
$4,804 NZD
£2,097 GBP
View
8 more retailers have this diamond
Prices start from $2,304 NZDSave up to $2,501 NZD

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
$2,304 NZD