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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 £544 GBP
₹69,432 INR
As of October 31, 2026
Save £1,740 GBP (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,284 GBP 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 £544 to £2,284, a £1,740 spread on the same certified stone. NZ Jewellers lists it at £2,284. 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: Oct 31
Current: £2,284 GBP|Low: £535 GBP|High: £2,360 GBP|Avg: £895 GBP|-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
Retailer 20
October 31, 2026
Retailer 2£544 GBP
Retailer 13£545 GBP
Retailer 9£661 GBP
Retailer 7£669 GBP
Retailer 3£728 GBP
Retailer 18£728 GBP
Retailer 12£740 GBP
Retailer 10£743 GBP
Retailer 8£751 GBP
Retailer 20£754 GBP
Retailer 5£774 GBP
Retailer 6£787 GBP
Retailer 14£818 GBP
Retailer 17£840 GBP
Retailer 15£845 GBP
Retailer 4£905 GBP
Retailer 11£973 GBP
Retailer 16£1,073 GBP
Retailer 19£1,336 GBP
NZ Jewellers£2,284 GBP

22 data points across 20 retailers

21 retailers£544 GBP to £2,284 GBP

A
Cheapest Retailer
-
£544 GBP
₹69,432 INR
A
Retailer 2
-
£545 GBP
HK$5,700 HKD
View
A
Retailer 3
-
£661 GBP
$885 USD
View
A
Retailer 4
-
£669 GBP
$896 USD
View
Final sale: no returns
A
Retailer 5
-
£728 GBP
$976 USD
View
A
Retailer 6
-
£728 GBP
$976 USD
View
A
Retailer 7
-
£740 GBP
$991 USD
View
A
Retailer 8
-
£743 GBP
$995 USD
View
A
Retailer 9
-
£751 GBP
SGD 1,360 SGD
View
A
Retailer 10
-
£754 GBP
$1,010 USD
View
B+
Retailer 11
-
£774 GBP
$1,037 USD
View
B+
Retailer 12
-
£787 GBP
$1,055 USD
View
B+
Retailer 13
-
£818 GBP
$1,096 USD
View
B+
Retailer 14
-
£840 GBP
$1,126 USD
View
B+
Retailer 15
-
£845 GBP
View
B+
Retailer 16
-
£905 GBP
$1,212 USD
View
Retailer 17
-
£973 GBP
€1,242 EUR
View
Price last confirmed 8 days ago
Retailer 18
-
£1,002 GBP
A$2,065 AUD
View
Price last confirmed 26 days ago
B+
Retailer 19
-
£1,073 GBP
ZAR 23,229 ZAR
View
B
Retailer 20
-
£1,336 GBP
View
Most Expensive
B
NZ Jewellers
7ebaa711-c764-47f5-be3f-3f43d9fa341b · Oct 30
£2,284 GBP
$3,060 USD
View
20 more retailers have this diamond
Prices start from £544 GBPSave up to £1,740 GBP

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
£544 GBP