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Cushion|Natural|GIA

0.80ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1378723039

Certificate GIA 1378723039

Diamond specifications and retailer prices

From HK$7,650 HKD
$975 USD
As of November 1, 2026
Save HK$2,785 HKD (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$10,435 HKD at Jared · As of October 30, 2026
View at Jared

About this 0.8ct natural cushion diamond

This 0.8ct natural cushion sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1378723039. Listed at 8 retailers as of October 30, 2026, with prices from HK$7,650 to HK$10,435, a HK$2,785 spread on the same certified stone. Jared lists it at HK$10,435. 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

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1378723039
Dimensions5.33 × 5.07 × 3.44 mm
L/W Ratio1.05
Culet sizeNone
Top View
5.33 mm5.07 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1378723039
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$10,435 HKD|Low: HK$7,650 HKD|High: HK$11,062 HKD|Avg: HK$9,053 HKD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 19, 2026
Retailer 2HK$7,650 HKD
Retailer 7HK$7,781 HKD
Retailer 6HK$8,160 HKD
Retailer 5HK$8,262 HKD
Retailer 4HK$9,446 HKD
Retailer 3HK$10,121 HKD
Retailer 8HK$10,121 HKD
JaredHK$10,435 HKD

6 data points across 8 retailers

8 retailersHK$7,650 HKD to HK$10,435 HKD

A
Cheapest Retailer
-
HK$7,650 HKD
$975 USD
A
Retailer 2
-
HK$7,781 HKD
$992 USD
View
A
Retailer 3
-
HK$8,160 HKD
$1,040 USD
View
A
Retailer 4
-
HK$8,262 HKD
$1,053 USD
View
B+
Retailer 5
-
HK$9,446 HKD
$1,204 USD
View
B+
Retailer 6
-
HK$10,121 HKD
$1,290 USD
View
B+
Retailer 7
-
HK$10,121 HKD
$1,290 USD
View
Most Expensive
B+
Jared
141737523 · Oct 30
HK$10,435 HKD
$1,330 USD
View
7 more retailers have this diamond
Prices start from HK$7,650 HKDSave up to HK$2,785 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.

A
0.80ct Cushion
HK$7,650 HKD