Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2554042649

Certificate GIA 2554042649

Diamond specifications and retailer prices

From £705 GBP
$944 USD
As of October 31, 2026
Save £1,494 GBP (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,199 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 2554042649. Listed at 19 retailers as of October 30, 2026, with prices from £705 to £2,199, a £1,494 spread on the same certified stone. NZ Jewellers lists it at £2,199. 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
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554042649
Dimensions6.01 × 6.02 × 3.59 mm
L/W Ratio1.00
Top View
6.01 mm6.02 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554042649
Side View
Table 60.0%Crown 34°Girdle: MED-NULPavilion 40.8°Culet: NoneDepth 59.6%

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: Oct 31
Current: £1,137 GBP|Low: £705 GBP|High: £1,671 GBP|Avg: £1,157 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6£705 GBP
Retailer 8£936 GBP
Retailer 3£1,023 GBP
Retailer 1£1,137 GBP
Retailer 5£1,170 GBP
Retailer 7£1,179 GBP
Retailer 4£1,333 GBP
Retailer 2£1,651 GBP

38 data points across 8 retailers

19 retailers£705 GBP to £2,199 GBP

A
Cheapest Retailer
-
£705 GBP
$944 USD
Final sale: no returns
B+
Retailer 2
-
£805 GBP
$1,078 USD
View
B+
Retailer 3
-
£864 GBP
$1,157 USD
View
Retailer 4
-
£902 GBP
$1,208 USD
View
Price last confirmed 55 days ago
B+
Retailer 5
-
£902 GBP
$1,208 USD
View
B+
Retailer 6
-
£902 GBP
$1,208 USD
View
B+
Retailer 7
-
£936 GBP
$1,254 USD
View
B+
Retailer 8
-
£993 GBP
$1,330 USD
View
B+
Retailer 9
-
£1,002 GBP
$1,342 USD
View
B+
Retailer 10
-
£1,023 GBP
View
Retailer 11
-
£1,040 GBP
$1,394 USD
View
Price last confirmed 55 days ago
B
Retailer 12
-
£1,040 GBP
$1,394 USD
View
B+
Retailer 13
-
£1,137 GBP
View
B+
Retailer 14
-
£1,141 GBP
$1,529 USD
View
B+
Retailer 15
-
£1,170 GBP
€1,493 EUR
View
Retailer 16
-
£1,179 GBP
A$2,430 AUD
View
Price last confirmed 27 days ago
B
Retailer 17
-
£1,333 GBP
ZAR 28,863 ZAR
View
B
Retailer 18
-
£1,651 GBP
View
Most Expensive
B
NZ Jewellers
5be44580-bda3-42c8-b841-bd20d652b34d · Oct 30
£2,199 GBP
$2,946 USD
View
18 more retailers have this diamond
Prices start from £705 GBPSave up to £1,494 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
£705 GBP