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Oval|Natural|GIA

1.00ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 2548536859

Certificate GIA 2548536859

Diamond specifications and retailer prices

From £1,855 GBP
As of November 6, 2026
Save £2,214 GBP (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,273 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2548536859. Listed at 22 retailers as of November 4, 2026, with a 119% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2548536859
Dimensions8.32 × 5.62 × 3.32 mm
L/W Ratio1.48
Top View
8.32 mm5.62 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2548536859
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.1%

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: £4,273 GBP|Low: £1,855 GBP|High: £4,273 GBP|Avg: £2,777 GBP
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
November 6, 2026
Retailer 3£1,855 GBP
Retailer 2£1,932 GBP
Retailer 13£2,188 GBP
Retailer 14£2,212 GBP
Retailer 5£2,252 GBP
Retailer 7£2,452 GBP
Retailer 11£2,510 GBP
Retailer 4£2,547 GBP
Retailer 9£2,584 GBP
Retailer 16£2,622 GBP
Retailer 8£2,829 GBP
Retailer 10£2,841 GBP
Retailer 12£2,978 GBP
Retailer 6£4,022 GBP
Retailer 15£4,070 GBP
NZ Jewellers£4,273 GBP

27 data points across 16 retailers

22 retailers£1,855 GBP to £4,070 GBP

A
Cheapest Retailer
-
£1,855 GBP
A
Retailer 2
-
£1,932 GBP
View
A
Retailer 3
-
£2,188 GBP
View
B+
Retailer 4
-
£2,212 GBP
View
B+
Retailer 5
-
£2,252 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,304 GBP
View
B+
Retailer 7
-
£2,305 GBP
View
B+
Retailer 8
-
£2,442 GBP
View
Retailer 9
-
£2,452 GBP
View
Price last confirmed 19 days ago
Retailer 10
-
£2,452 GBP
View
Price last confirmed 21 days ago
B+
Retailer 11
-
£2,510 GBP
View
Retailer 12
-
£2,547 GBP
View
Price last confirmed 21 days ago
B+
Retailer 13
-
£2,547 GBP
View
B+
Retailer 14
-
£2,584 GBP
View
B+
Retailer 15
-
£2,622 GBP
View
Retailer 16
-
£2,633 GBP
View
Price last confirmed 30 days ago
Retailer 17
-
£2,829 GBP
View
Price last confirmed 19 days ago
B+
Retailer 18
-
£2,841 GBP
View
B+
Retailer 19
-
£2,978 GBP
View
Retailer 20
-
£4,022 GBP
View
Price last confirmed 9 days ago
B
Retailer 21
-
£4,070 GBP
View
Most Expensive
NZ Jewellers
351679af-7ace-4060-8814-106cb2d5786d · Oct 17
£4,273 GBP
$5,719 USD
View
Price last confirmed 20 days ago
21 more retailers have this diamond
Prices start from £1,855 GBPSave up to £2,214 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
£1,855 GBP