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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 $1,038 AUD
₹69,417 INR
As of November 1, 2026
Save $3,319 AUD (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,356 AUD 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 $1,038 to $4,356, a $3,319 spread on the same certified stone. NZ Jewellers lists it at $4,356. 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: $4,356 AUD|Low: $1,020 AUD|High: $4,501 AUD|Avg: $1,723 AUD|-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 2, 2026
Retailer 13$1,038 AUD
Retailer 16$1,039 AUD
Retailer 10$1,260 AUD
Retailer 8$1,276 AUD
Retailer 15$1,377 AUD
Retailer 3$1,389 AUD
Retailer 11$1,416 AUD
Retailer 9$1,433 AUD
Retailer 4$1,438 AUD
Retailer 6$1,476 AUD
Retailer 7$1,502 AUD
Retailer 17$1,560 AUD
Retailer 12$1,599 AUD
Retailer 19$1,603 AUD
Retailer 5$1,725 AUD
Retailer 2$1,789 AUD
Retailer 18$2,047 AUD
Retailer 14$2,535 AUD
NZ Jewellers$4,356 AUD

23 data points across 19 retailers

21 retailers$1,038 AUD to $4,356 AUD

A
Cheapest Retailer
-
$1,038 AUD
₹69,417 INR
A
Retailer 2
-
$1,039 AUD
HK$5,700 HKD
View
A
Retailer 3
-
$1,260 AUD
$885 USD
View
A
Retailer 4
-
$1,276 AUD
$896 USD
View
Final sale: no returns
A
Retailer 5
-
$1,377 AUD
$967 USD
View
A
Retailer 6
-
$1,389 AUD
$976 USD
View
A
Retailer 7
-
$1,411 AUD
$991 USD
View
A
Retailer 8
-
$1,416 AUD
$995 USD
View
A
Retailer 9
-
$1,433 AUD
SGD 1,360 SGD
View
A
Retailer 10
-
$1,438 AUD
$1,010 USD
View
B+
Retailer 11
-
$1,476 AUD
$1,037 USD
View
B+
Retailer 12
-
$1,502 AUD
$1,055 USD
View
B+
Retailer 13
-
$1,560 AUD
$1,096 USD
View
B+
Retailer 14
-
$1,599 AUD
£884 GBP
View
B+
Retailer 15
-
$1,603 AUD
$1,126 USD
View
B+
Retailer 16
-
$1,725 AUD
$1,212 USD
View
Retailer 17
-
$1,789 AUD
€1,197 EUR
View
Retailer 18
-
$1,911 AUD
View
Price last confirmed 28 days ago
B+
Retailer 19
-
$2,047 AUD
ZAR 23,229 ZAR
View
B
Retailer 20
-
$2,535 AUD
£1,402 GBP
View
Most Expensive
B
NZ Jewellers
7ebaa711-c764-47f5-be3f-3f43d9fa341b · Oct 30
$4,356 AUD
$3,060 USD
View
20 more retailers have this diamond
Prices start from $1,038 AUDSave up to $3,319 AUD

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
$1,038 AUD