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Oval|Natural|GIA

1.00ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1525251765

Certificate GIA 1525251765

Diamond specifications and retailer prices

From £1,893 GBP
As of November 6, 2026
Save £2,216 GBP (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,292 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 1525251765. Listed at 23 retailers as of November 4, 2026, with a 117% 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1525251765
Dimensions8.63 × 5.35 × 3.37 mm
L/W Ratio1.61
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Indented Natural
Top View
8.63 mm5.35 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1525251765
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.9%

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: £1,971 GBP|Low: £1,893 GBP|High: £4,170 GBP|Avg: £2,731 GBP|-2.3%
Retailer 1
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 2£1,893 GBP
Retailer 1£1,971 GBP
Retailer 14£2,233 GBP
Retailer 16£2,241 GBP
Retailer 6£2,256 GBP
Retailer 4£2,294 GBP
Retailer 9£2,390 GBP
Retailer 7£2,464 GBP
Retailer 12£2,549 GBP
Retailer 5£2,559 GBP
Retailer 10£2,637 GBP
Retailer 8£2,843 GBP
Retailer 11£2,867 GBP
Retailer 13£3,007 GBP
Retailer 3£4,032 GBP
Retailer 15£4,109 GBP

26 data points across 16 retailers

23 retailers£1,893 GBP to £4,109 GBP

A
Cheapest Retailer
-
£1,893 GBP
A
Retailer 2
-
£1,971 GBP
View
B+
Retailer 3
-
£2,233 GBP
View
B+
Retailer 4
-
£2,241 GBP
View
B+
Retailer 5
-
£2,256 GBP
View
B+
Retailer 6
-
£2,273 GBP
View
Final sale: no returns
Retailer 7
-
£2,294 GBP
View
Price last confirmed 19 days ago
B+
Retailer 8
-
£2,350 GBP
View
B+
Retailer 9
-
£2,353 GBP
View
B+
Retailer 10
-
£2,390 GBP
View
Retailer 11
-
£2,464 GBP
View
Price last confirmed 21 days ago
Retailer 12
-
£2,464 GBP
View
Price last confirmed 19 days ago
B+
Retailer 13
-
£2,549 GBP
View
Retailer 14
-
£2,559 GBP
View
Price last confirmed 21 days ago
B+
Retailer 15
-
£2,571 GBP
View
B+
Retailer 16
-
£2,637 GBP
View
Retailer 17
-
£2,668 GBP
View
Price last confirmed 33 days ago
Retailer 18
-
£2,843 GBP
View
Price last confirmed 19 days ago
B+
Retailer 19
-
£2,867 GBP
View
B+
Retailer 20
-
£3,007 GBP
View
Retailer 21
-
£4,032 GBP
View
Price last confirmed 9 days ago
B
Retailer 22
-
£4,109 GBP
View
Most Expensive
NZ Jewellers
22c08c08-1618-484a-942f-3ee196d09e0c · Oct 17
£4,292 GBP
$5,745 USD
View
Price last confirmed 20 days ago
22 more retailers have this diamond
Prices start from £1,893 GBPSave up to £2,216 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
£1,893 GBP