Round|Natural|GIA

0.80ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7518428781

Certificate GIA 7518428781

Diamond specifications and retailer prices

From $2,000 NZD
$1,127 USD
As of October 30, 2026
Save $2,221 NZD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,619 NZD 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 30, 2026, with a 111% 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 30
Current: $3,204 NZD|Low: $1,606 NZD|High: $4,270 NZD|Avg: $2,532 NZD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$1,927 NZD
Retailer 7$1,978 NZD
Retailer 2$2,000 NZD
Retailer 9$2,003 NZD
Retailer 6$2,087 NZD
Retailer 10$2,188 NZD
Retailer 5$2,271 NZD
Retailer 3$3,058 NZD
Retailer 1$3,204 NZD
Retailer 4$4,221 NZD

38 data points across 10 retailers

21 retailers$2,000 NZD to $4,221 NZD

Retailer 1
-
$1,978 NZD
$1,115 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
$2,000 NZD
$1,127 USD
View
B+
Retailer 3
-
$2,003 NZD
$1,129 USD
View
B+
Retailer 4
-
$2,049 NZD
$1,155 USD
View
B+
Retailer 5
-
$2,087 NZD
$1,176 USD
View
Retailer 6
-
$2,087 NZD
$1,176 USD
View
Price last confirmed 33 days ago
Retailer 7
-
$2,087 NZD
$1,176 USD
View
Price last confirmed 23 days ago
Retailer 8
-
$2,087 NZD
$1,176 USD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$2,188 NZD
$1,233 USD
View
B+
Retailer 10
-
$2,248 NZD
$1,267 USD
View
B+
Retailer 11
-
$2,271 NZD
£1,008 GBP
View
Retailer 12
-
$2,408 NZD
$1,357 USD
View
Price last confirmed 34 days ago
B
Retailer 13
-
$2,408 NZD
$1,357 USD
View
B
Retailer 14
-
$2,413 NZD
$1,360 USD
View
B
Retailer 15
-
$2,413 NZD
$1,360 USD
View
B
Retailer 16
-
$2,502 NZD
$1,410 USD
View
B
Retailer 17
-
$3,058 NZD
£1,357 GBP
View
B
Retailer 18
-
$3,204 NZD
€1,720 EUR
View
B
Retailer 19
-
$4,221 NZD
£1,873 GBP
View
Retailer 20
-
$5,619 NZD
$3,167 USD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
01280d2d-e210-49bc-b0cf-4261d6adf45c · Oct 3
$5,619 NZD
$3,167 USD
View
Price last confirmed 29 days ago
20 more retailers have this diamond
Prices start from $2,000 NZDSave up to $2,221 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+
0.80ct Round
$2,000 NZD