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Round|Natural|GIA

0.80ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7518428781

Certificate GIA 7518428781

Diamond specifications and retailer prices

From $1,425 SGD
$1,115 USD
As of October 25, 2026
Save $1,619 SGD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,049 SGD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7518428781. Listed at 21 retailers as of October 25, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7518428781
Dimensions5.89 × 5.85 × 3.71 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
5.89 mm5.85 mm0.80 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7518428781
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $1,636 SGD|Low: $1,157 SGD|High: $3,077 SGD|Avg: $1,822 SGD|+5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8$1,388 SGD
Retailer 7$1,425 SGD
Retailer 2$1,441 SGD
Retailer 9$1,443 SGD
Retailer 6$1,503 SGD
Retailer 10$1,576 SGD
Retailer 1$1,636 SGD
Retailer 3$2,210 SGD
Retailer 4$2,318 SGD
Retailer 5$3,044 SGD

38 data points across 10 retailers

21 retailers$1,425 SGD to $3,044 SGD

B+
Cheapest Retailer
-
$1,425 SGD
$1,115 USD
B+
Retailer 2
-
$1,441 SGD
$1,127 USD
View
B+
Retailer 3
-
$1,443 SGD
$1,129 USD
View
B+
Retailer 4
-
$1,477 SGD
$1,155 USD
View
B+
Retailer 5
-
$1,503 SGD
$1,176 USD
View
Retailer 6
-
$1,503 SGD
$1,176 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$1,503 SGD
$1,176 USD
View
Price last confirmed 22 days ago
Retailer 8
-
$1,503 SGD
$1,176 USD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
$1,576 SGD
$1,233 USD
View
B+
Retailer 10
-
$1,620 SGD
$1,267 USD
View
B+
Retailer 11
-
$1,636 SGD
£1,008 GBP
View
Retailer 12
-
$1,735 SGD
$1,357 USD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$1,735 SGD
$1,357 USD
View
B
Retailer 14
-
$1,739 SGD
$1,360 USD
View
B
Retailer 15
-
$1,739 SGD
$1,360 USD
View
B
Retailer 16
-
$1,803 SGD
$1,410 USD
View
B
Retailer 17
-
$2,210 SGD
£1,361 GBP
View
B
Retailer 18
-
$2,318 SGD
€1,727 EUR
View
B
Retailer 19
-
$3,044 SGD
£1,875 GBP
View
Retailer 20
-
$4,049 SGD
$3,167 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
01280d2d-e210-49bc-b0cf-4261d6adf45c · Oct 3
$4,049 SGD
$3,167 USD
View
Price last confirmed 28 days ago
20 more retailers have this diamond
Prices start from $1,425 SGDSave up to $1,619 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.

B+
0.80ct Round
$1,425 SGD