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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6405725798

Certificate GIA 6405725798

Diamond specifications and retailer prices

From $1,707 NZD
₹91,638 INR
As of November 1, 2026
Save $3,889 NZD (69%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,596 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 6405725798. Listed at 21 retailers as of October 30, 2026, with prices from $1,707 to $5,596, a $3,889 spread on the same certified stone. NZ Jewellers lists it at $5,596. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6405725798
Dimensions5.94 × 5.91 × 3.71 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.94 mm5.91 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6405725798
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,707 NZD|Low: $1,703 NZD|High: $6,207 NZD|Avg: $2,758 NZD|-2.5%
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 1$1,707 NZD
Retailer 2$2,117 NZD
Retailer 11$2,126 NZD
Retailer 12$2,147 NZD
Retailer 4$2,294 NZD
Retailer 9$2,502 NZD
Retailer 6$2,606 NZD
Retailer 10$2,727 NZD
Retailer 8$2,979 NZD
Retailer 3$3,000 NZD
Retailer 7$3,394 NZD
Retailer 5$4,203 NZD

33 data points across 12 retailers

21 retailers$1,707 NZD to $5,596 NZD

A
Cheapest Retailer
-
$1,707 NZD
₹91,638 INR
Retailer 2
-
$1,771 NZD
HK$7,800 HKD
View
Price last confirmed 58 days ago
B+
Retailer 3
-
$2,048 NZD
$1,154 USD
View
B+
Retailer 4
-
$2,117 NZD
$1,193 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,126 NZD
$1,198 USD
View
Retailer 6
-
$2,147 NZD
$1,210 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$2,294 NZD
$1,293 USD
View
Price last confirmed 39 days ago
Retailer 8
-
$2,294 NZD
$1,293 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
$2,294 NZD
$1,293 USD
View
B+
Retailer 10
-
$2,502 NZD
$1,410 USD
View
B
Retailer 11
-
$2,534 NZD
$1,428 USD
View
B
Retailer 12
-
$2,606 NZD
£1,156 GBP
View
B+
Retailer 13
-
$2,647 NZD
$1,492 USD
View
Retailer 14
-
$2,647 NZD
$1,492 USD
View
Price last confirmed 40 days ago
B
Retailer 15
-
$2,727 NZD
£1,210 GBP
View
B
Retailer 16
-
$2,979 NZD
€1,599 EUR
View
Retailer 17
-
$3,000 NZD
A$2,601 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
$3,394 NZD
ZAR 30,900 ZAR
View
B
Retailer 19
-
$4,203 NZD
£1,865 GBP
View
Retailer 20
-
$5,596 NZD
$3,154 USD
View
Price last confirmed 41 days ago
Most Expensive
B
NZ Jewellers
1e096078-c2b6-44c9-9d1f-7ea2608ddbbb · Oct 30
$5,596 NZD
$3,154 USD
View
20 more retailers have this diamond
Prices start from $1,707 NZDSave up to $3,889 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.

A
0.80ct Round
$1,707 NZD