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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 HK$10,008 HKD
As of November 4, 2026
Save HK$10,864 HKD (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$20,872 HKD 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 HK$10,008 to HK$20,872, a HK$10,864 spread on the same certified stone. MOH London lists it at HK$20,872. 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: HK$20,872 HKD|Low: HK$11,599 HKD|High: HK$21,131 HKD|Avg: HK$15,092 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5HK$11,599 HKD
Retailer 6HK$11,968 HKD
Retailer 3HK$13,159 HKD
Retailer 2HK$15,369 HKD
Retailer 4HK$17,791 HKD
MOH LondonHK$20,872 HKD

43 data points across 6 retailers

9 retailersHK$10,008 HKD to HK$20,872 HKD

B
Cheapest Retailer
-
HK$10,008 HKD
B
Retailer 2
-
HK$10,251 HKD
View
B
Retailer 3
-
HK$11,599 HKD
View
B
Retailer 4
-
HK$11,968 HKD
View
B
Retailer 5
-
HK$13,159 HKD
View
B
Retailer 6
-
HK$13,535 HKD
View
B
Retailer 7
-
HK$15,369 HKD
View
B
Retailer 8
-
HK$17,791 HKD
View
Most Expensive
B
MOH London
CECA453E8 · Nov 2
HK$20,872 HKD
£2,097 GBP
View
8 more retailers have this diamond
Prices start from HK$10,008 HKDSave up to HK$10,864 HKD

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
HK$10,008 HKD