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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1557942728

Certificate GIA 1557942728

Diamond specifications and retailer prices

From $1,293 NZD
₹69,417 INR
As of November 1, 2026
Save $4,136 NZD (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,429 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 1557942728. Listed at 21 retailers as of October 30, 2026, with prices from $1,293 to $5,429, a $4,136 spread on the same certified stone. NZ Jewellers lists it at $5,429. 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
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1557942728
Dimensions5.85 × 5.90 × 3.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.85 mm5.90 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1557942728
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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: $5,429 NZD|Low: $1,272 NZD|High: $5,610 NZD|Avg: $2,150 NZD|-3.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 2$1,293 NZD
Retailer 15$1,295 NZD
Retailer 9$1,570 NZD
Retailer 7$1,590 NZD
Retailer 14$1,716 NZD
Retailer 19$1,732 NZD
Retailer 10$1,765 NZD
Retailer 8$1,786 NZD
Retailer 3$1,792 NZD
Retailer 5$1,840 NZD
Retailer 6$1,872 NZD
Retailer 16$1,945 NZD
Retailer 13$1,993 NZD
Retailer 18$1,998 NZD
Retailer 4$2,150 NZD
Retailer 11$2,314 NZD
Retailer 17$2,551 NZD
Retailer 12$3,159 NZD
NZ Jewellers$5,429 NZD

22 data points across 19 retailers

21 retailers$1,293 NZD to $5,429 NZD

A
Cheapest Retailer
-
$1,293 NZD
₹69,417 INR
A
Retailer 2
-
$1,295 NZD
HK$5,700 HKD
View
A
Retailer 3
-
$1,570 NZD
$885 USD
View
A
Retailer 4
-
$1,590 NZD
$896 USD
View
Final sale: no returns
A
Retailer 5
-
$1,716 NZD
$967 USD
View
A
Retailer 6
-
$1,732 NZD
$976 USD
View
A
Retailer 7
-
$1,758 NZD
$991 USD
View
A
Retailer 8
-
$1,765 NZD
$995 USD
View
A
Retailer 9
-
$1,786 NZD
SGD 1,360 SGD
View
A
Retailer 10
-
$1,792 NZD
$1,010 USD
View
B+
Retailer 11
-
$1,840 NZD
$1,037 USD
View
B+
Retailer 12
-
$1,872 NZD
$1,055 USD
View
B+
Retailer 13
-
$1,945 NZD
$1,096 USD
View
B+
Retailer 14
-
$1,993 NZD
£884 GBP
View
B+
Retailer 15
-
$1,998 NZD
$1,126 USD
View
B+
Retailer 16
-
$2,150 NZD
$1,212 USD
View
Retailer 17
-
$2,314 NZD
€1,242 EUR
View
Price last confirmed 9 days ago
Retailer 18
-
$2,382 NZD
A$2,065 AUD
View
Price last confirmed 27 days ago
B+
Retailer 19
-
$2,551 NZD
ZAR 23,229 ZAR
View
B
Retailer 20
-
$3,159 NZD
£1,402 GBP
View
Most Expensive
B
NZ Jewellers
7ebaa711-c764-47f5-be3f-3f43d9fa341b · Oct 30
$5,429 NZD
$3,060 USD
View
20 more retailers have this diamond
Prices start from $1,293 NZDSave up to $4,136 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
$1,293 NZD