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Round|Natural|GIA

0.80ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1389368358

Certificate GIA 1389368358

Diamond specifications and retailer prices

From $1,735 NZD
As of November 6, 2026
Save $3,923 NZD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,659 NZD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1389368358. Listed at 18 retailers as of November 5, 2026, with prices from $1,735 to $5,659, a $3,923 spread on the same certified stone. NZ Jewellers lists it at $5,659. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1389368358
Dimensions5.89 × 5.93 × 3.70 mm
L/W Ratio1.01
Top View
5.89 mm5.93 mm0.80 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1389368358
Side View
Table 57.0%Crown 35.5°Girdle: NULPavilion 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 6
Current: $1,735 NZD|Low: $1,735 NZD|High: $4,295 NZD|Avg: $2,945 NZD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$1,735 NZD
Retailer 3$2,592 NZD
Retailer 5$2,771 NZD
Retailer 2$2,908 NZD
Retailer 4$3,040 NZD
Retailer 6$3,431 NZD
Retailer 7$4,237 NZD

27 data points across 7 retailers

18 retailers$1,735 NZD to $5,659 NZD

A
Cheapest Retailer
-
$1,735 NZD
A
Retailer 2
-
$2,071 NZD
View
A
Retailer 3
-
$2,141 NZD
View
Final sale: no returns
A
Retailer 4
-
$2,150 NZD
View
Retailer 5
-
$2,320 NZD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$2,320 NZD
View
B+
Retailer 7
-
$2,410 NZD
View
B+
Retailer 8
-
$2,525 NZD
View
B+
Retailer 9
-
$2,563 NZD
View
B+
Retailer 10
-
$2,592 NZD
View
B+
Retailer 11
-
$2,677 NZD
View
B+
Retailer 12
-
$2,771 NZD
View
B+
Retailer 13
-
$2,908 NZD
View
Retailer 14
-
$3,032 NZD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$3,040 NZD
View
B+
Retailer 16
-
$3,431 NZD
View
B
Retailer 17
-
$4,237 NZD
View
Most Expensive
B
NZ Jewellers
c840f667-effc-43a0-97e9-61d28b403e2e · Nov 5
$5,659 NZD
$3,137 USD
View
17 more retailers have this diamond
Prices start from $1,735 NZDSave up to $3,923 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
$1,735 NZD