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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5506585990

Certificate GIA 5506585990

Diamond specifications and retailer prices

From $2,062 NZD
$1,162 USD
As of October 31, 2026
Save $3,951 NZD (66%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,013 NZD at NZ Jewellers · As of October 30, 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 5506585990. Listed at 20 retailers as of October 30, 2026, with prices from $2,062 to $6,013, a $3,951 spread on the same certified stone. NZ Jewellers lists it at $6,013. 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
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5506585990
Dimensions5.93 × 5.88 × 3.67 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.93 mm5.88 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5506585990
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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: $3,186 NZD|Low: $1,718 NZD|High: $4,570 NZD|Avg: $3,005 NZD|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8$2,062 NZD
Retailer 11$2,143 NZD
Retailer 10$2,319 NZD
Retailer 7$2,440 NZD
Retailer 5$2,732 NZD
Retailer 3$2,795 NZD
Retailer 1$3,186 NZD
Retailer 9$3,216 NZD
Retailer 6$3,646 NZD
Retailer 2$4,024 NZD
Retailer 4$4,516 NZD

43 data points across 11 retailers

20 retailers$2,062 NZD to $6,013 NZD

B+
Cheapest Retailer
-
$2,062 NZD
$1,162 USD
Final sale: no returns
B+
Retailer 2
-
$2,113 NZD
$1,191 USD
View
B+
Retailer 3
-
$2,138 NZD
$1,205 USD
View
B+
Retailer 4
-
$2,143 NZD
$1,208 USD
View
B+
Retailer 5
-
$2,191 NZD
$1,235 USD
View
B+
Retailer 6
-
$2,234 NZD
$1,259 USD
View
B+
Retailer 7
-
$2,319 NZD
$1,307 USD
View
B
Retailer 8
-
$2,440 NZD
$1,375 USD
View
B
Retailer 9
-
$2,576 NZD
$1,452 USD
View
B+
Retailer 10
-
$2,661 NZD
$1,500 USD
View
B+
Retailer 11
-
$2,661 NZD
$1,500 USD
View
B+
Retailer 12
-
$2,732 NZD
£1,212 GBP
View
B
Retailer 13
-
$2,750 NZD
$1,550 USD
View
B
Retailer 14
-
$2,795 NZD
$1,575 USD
View
B
Retailer 15
-
$3,186 NZD
€1,710 EUR
View
Retailer 16
-
$3,216 NZD
A$2,789 AUD
View
Price last confirmed 27 days ago
B
Retailer 17
-
$3,646 NZD
ZAR 33,196 ZAR
View
B
Retailer 18
-
$4,024 NZD
CA$3,150 CAD
View
B
Retailer 19
-
$4,516 NZD
£2,004 GBP
View
Most Expensive
B
NZ Jewellers
abd4e079-4c0d-4db3-8fbc-485f90a6eab7 · Oct 30
$6,013 NZD
$3,389 USD
View
19 more retailers have this diamond
Prices start from $2,062 NZDSave up to $3,951 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
$2,062 NZD