Oval|Natural|GIA

1.00ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6545475752

Certificate GIA 6545475752

Diamond specifications and retailer prices

From £1,090 GBP
As of November 6, 2026
Save £1,426 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,523 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545475752. Listed at 20 retailers as of November 2, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545475752
Dimensions8.59 × 5.45 × 3.27 mm
L/W Ratio1.58
Top View
8.59 mm5.45 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545475752
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.9%

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: £1,138 GBP|Low: £1,080 GBP|High: £2,567 GBP|Avg: £1,611 GBP|-4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£1,090 GBP
Retailer 1£1,138 GBP
Retailer 12£1,325 GBP
Retailer 7£1,355 GBP
Retailer 5£1,511 GBP
Retailer 10£1,539 GBP
Retailer 6£1,559 GBP
Retailer 9£1,561 GBP
Retailer 3£1,774 GBP
Retailer 4£1,894 GBP
Retailer 11£1,960 GBP
Retailer 8£2,516 GBP

32 data points across 12 retailers

20 retailers£1,090 GBP to £2,516 GBP

A
Cheapest Retailer
-
£1,090 GBP
A
Retailer 2
-
£1,138 GBP
View
B+
Retailer 3
-
£1,325 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,355 GBP
View
B+
Retailer 5
-
£1,372 GBP
View
B+
Retailer 6
-
£1,375 GBP
View
Retailer 7
-
£1,444 GBP
View
Price last confirmed 21 days ago
Retailer 8
-
£1,444 GBP
View
Price last confirmed 19 days ago
B+
Retailer 9
-
£1,499 GBP
View
Retailer 10
-
£1,511 GBP
View
Price last confirmed 21 days ago
B+
Retailer 11
-
£1,511 GBP
View
B+
Retailer 12
-
£1,539 GBP
View
B+
Retailer 13
-
£1,559 GBP
View
B
Retailer 14
-
£1,561 GBP
View
Retailer 15
-
£1,666 GBP
View
Price last confirmed 19 days ago
B+
Retailer 16
-
£1,774 GBP
View
Retailer 17
-
£1,894 GBP
View
Price last confirmed 32 days ago
B
Retailer 18
-
£1,960 GBP
View
B
Retailer 19
-
£2,516 GBP
View
Most Expensive
NZ Jewellers
f721950e-0696-44b5-824e-4d099985d455 · Oct 17
£3,523 GBP
$4,715 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from £1,090 GBPSave up to £1,426 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
1.00ct Oval
£1,090 GBP