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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 $1,246 SGD
$975 USD
As of November 1, 2026
Save $454 SGD (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,700 SGD at Jared · As of November 2, 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 November 1, 2026, with prices from $1,246 to $1,700, a $454 spread on the same certified stone. Jared lists it at $1,700. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,700 SGD|Low: $1,246 SGD|High: $1,803 SGD|Avg: $1,475 SGD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 19, 2026
Retailer 2$1,246 SGD
Retailer 7$1,268 SGD
Retailer 6$1,330 SGD
Retailer 5$1,346 SGD
Retailer 4$1,539 SGD
Retailer 3$1,649 SGD
Retailer 8$1,649 SGD
Jared$1,700 SGD

6 data points across 8 retailers

8 retailers$1,246 SGD to $1,700 SGD

A
Cheapest Retailer
-
$1,246 SGD
$975 USD
A
Retailer 2
-
$1,268 SGD
$992 USD
View
A
Retailer 3
-
$1,330 SGD
$1,040 USD
View
A
Retailer 4
-
$1,346 SGD
$1,053 USD
View
B+
Retailer 5
-
$1,539 SGD
$1,204 USD
View
B+
Retailer 6
-
$1,649 SGD
$1,290 USD
View
B+
Retailer 7
-
$1,649 SGD
$1,290 USD
View
Most Expensive
B+
Jared
141737523 · Nov 2
$1,700 SGD
$1,330 USD
View
7 more retailers have this diamond
Prices start from $1,246 SGDSave up to $454 SGD

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
$1,246 SGD