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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1545854319

Certificate GIA 1545854319

Diamond specifications and retailer prices

From $1,872 NZD
$1,055 USD
As of October 31, 2026
Save $2,231 NZD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,463 NZD at NZ Jewellers · As of September 26, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1545854319. Listed at 19 retailers as of October 31, 2026, with a 119% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545854319
Dimensions5.94 × 5.89 × 3.70 mm
L/W Ratio1.01
Key to symbols
Cloud
Top View
5.94 mm5.89 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545854319
Side View
Table 56.0%CrownGirdlePavilionCulet: NDepth 62.5%

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 31
Current: $3,115 NZD|Low: $1,716 NZD|High: $4,151 NZD|Avg: $2,566 NZD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 10$1,872 NZD
Retailer 4$1,916 NZD
Retailer 2$1,945 NZD
Retailer 12$1,991 NZD
Retailer 9$2,138 NZD
Retailer 3$2,262 NZD
Retailer 6$2,543 NZD
Retailer 8$2,749 NZD
Retailer 11$2,929 NZD
Retailer 1$3,115 NZD
Retailer 7$3,313 NZD
Retailer 5$4,103 NZD

39 data points across 12 retailers

19 retailers$1,872 NZD to $4,103 NZD

B+
Cheapest Retailer
-
$1,872 NZD
$1,055 USD
Final sale: no returns
B+
Retailer 2
-
$1,916 NZD
$1,080 USD
View
B+
Retailer 3
-
$1,945 NZD
$1,096 USD
View
B+
Retailer 4
-
$1,991 NZD
$1,122 USD
View
Retailer 5
-
$2,030 NZD
$1,144 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$2,030 NZD
$1,144 USD
View
Price last confirmed 25 days ago
Retailer 7
-
$2,108 NZD
$1,188 USD
View
Price last confirmed 33 days ago
B+
Retailer 8
-
$2,138 NZD
$1,205 USD
View
B+
Retailer 9
-
$2,192 NZD
$1,236 USD
View
B+
Retailer 10
-
$2,262 NZD
$1,275 USD
View
Retailer 11
-
$2,342 NZD
$1,320 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$2,543 NZD
£1,129 GBP
View
B+
Retailer 13
-
$2,749 NZD
£1,220 GBP
View
B
Retailer 14
-
$2,848 NZD
$1,605 USD
View
Retailer 15
-
$2,929 NZD
A$2,539 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$3,115 NZD
€1,672 EUR
View
B
Retailer 17
-
$3,313 NZD
ZAR 30,163 ZAR
View
B
Retailer 18
-
$4,103 NZD
£1,821 GBP
View
Most Expensive
NZ Jewellers
b671951b-5a27-4c0d-a480-147e02f29600 · Sep 26
$5,463 NZD
$3,079 USD
View
Price last confirmed 36 days ago
18 more retailers have this diamond
Prices start from $1,872 NZDSave up to $2,231 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
$1,872 NZD