Oval|Natural|GIA

1.01ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 1555637020

Certificate GIA 1555637020

Diamond specifications and retailer prices

From £688 GBP
As of November 6, 2026
Save £1,001 GBP (59%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,723 GBP at NZ Jewellers · As of August 29, 2026
View at NZ Jewellers

About this 1.01ct natural oval diamond

This 1.01ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555637020. Listed at 22 retailers as of November 4, 2026, with a 145% 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

1.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555637020
Dimensions8.24 × 5.35 × 3.37 mm
L/W Ratio1.54
Top View
8.24 mm5.35 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555637020
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £897 GBP|Low: £688 GBP|High: £1,866 GBP|Avg: £1,090 GBP|-9.8%
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
November 6, 2026
Retailer 12£688 GBP
Retailer 10£886 GBP
Retailer 1£897 GBP
Retailer 3£908 GBP
Retailer 13£911 GBP
Retailer 4£953 GBP
Retailer 7£956 GBP
Retailer 5£990 GBP
Retailer 6£1,025 GBP
Retailer 8£1,045 GBP
Retailer 9£1,129 GBP
Retailer 2£1,329 GBP
Retailer 11£1,689 GBP

31 data points across 13 retailers

22 retailers£688 GBP to £1,689 GBP

A
Cheapest Retailer
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£688 GBP
A
Retailer 2
-
£886 GBP
View
A
Retailer 3
-
£897 GBP
View
A
Retailer 4
-
£908 GBP
View
A
Retailer 5
-
£911 GBP
View
Retailer 6
-
£953 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£956 GBP
View
Retailer 8
-
£979 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
£979 GBP
View
Price last confirmed 23 days ago
A
Retailer 10
-
£990 GBP
View
A
Retailer 11
-
£1,025 GBP
View
Retailer 12
-
£1,035 GBP
View
Price last confirmed 38 days ago
A
Retailer 13
-
£1,045 GBP
View
Retailer 14
-
£1,082 GBP
View
Price last confirmed 38 days ago
A
Retailer 15
-
£1,129 GBP
View
Retailer 16
-
£1,194 GBP
View
Price last confirmed 38 days ago
Retailer 17
-
£1,288 GBP
View
Price last confirmed 66 days ago
B+
Retailer 18
-
£1,329 GBP
View
B
Retailer 19
-
£1,689 GBP
View
Retailer 20
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£2,389 GBP
View
Price last confirmed 23 days ago
Retailer 21
-
£2,589 GBP
View
Price last confirmed 40 days ago
Most Expensive
NZ Jewellers
083a96f7-e86a-41e7-8fc6-6164d8ff02d7 · Aug 29
£2,723 GBP
$3,645 USD
View
Price last confirmed 69 days ago
21 more retailers have this diamond
Prices start from £688 GBPSave up to £1,001 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
1.01ct Oval
£688 GBP