CaratHunter
Plans
Oval|Natural|GIA

1.00ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 2557588868

Certificate GIA 2557588868

Diamond specifications and retailer prices

From £1,263 GBP
As of November 6, 2026
Save £1,726 GBP (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,635 GBP at NZ Jewellers · As of September 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557588868. Listed at 15 retailers as of November 2, 2026, with a 137% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2557588868
Dimensions8.16 × 5.63 × 3.43 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
8.16 mm5.63 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557588868
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.9%

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: £1,263 GBP|Low: £1,263 GBP|High: £3,083 GBP|Avg: £1,844 GBP|-5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1£1,263 GBP
Retailer 8£1,340 GBP
Retailer 7£1,532 GBP
Retailer 3£1,663 GBP
Retailer 11£1,683 GBP
Retailer 5£1,695 GBP
Retailer 2£1,717 GBP
Retailer 6£1,842 GBP
Retailer 9£1,987 GBP
Retailer 4£2,161 GBP
Retailer 10£2,988 GBP

35 data points across 11 retailers

15 retailers£1,263 GBP to £2,988 GBP

A
Cheapest Retailer
-
£1,263 GBP
A
Retailer 2
-
£1,340 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,532 GBP
View
A
Retailer 4
-
£1,663 GBP
View
A
Retailer 5
-
£1,683 GBP
View
A
Retailer 6
-
£1,695 GBP
View
Retailer 7
-
£1,717 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£1,739 GBP
View
Price last confirmed 39 days ago
Retailer 9
-
£1,819 GBP
View
Price last confirmed 38 days ago
A
Retailer 10
-
£1,842 GBP
View
A
Retailer 11
-
£1,987 GBP
View
Retailer 12
-
£2,007 GBP
View
Price last confirmed 38 days ago
B+
Retailer 13
-
£2,161 GBP
View
B+
Retailer 14
-
£2,988 GBP
View
Most Expensive
NZ Jewellers
243e5f99-f527-4112-994e-c6345867dc3e · Sep 30
£3,635 GBP
$4,866 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from £1,263 GBPSave up to £1,726 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
£1,263 GBP