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Oval|Natural|GIA

0.91ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 2557905310

Certificate GIA 2557905310

Diamond specifications and retailer prices

From £699 GBP
As of November 5, 2026
Save £417 GBP (37%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,116 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 0.91ct natural oval diamond

This 0.91ct natural oval sits in the just-under-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 2557905310. Listed at 12 retailers as of November 5, 2026, with prices from £699 to £1,116, a £417 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,116. 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

0.91
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.76°
Pavilion angle39.34°
OriginNatural
Grading LabGIA
CertificateGIA 2557905310
Dimensions7.87 × 5.39 × 3.27 mm
L/W Ratio1.46
Culet sizeNone
Top View
7.87 mm5.39 mm0.91 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557905310
Side View
Table 59.0%Crown 38.76°Girdle: STK-THKPavilion 39.34°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £848 GBP|Low: £675 GBP|High: £1,171 GBP|Avg: £870 GBP|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 8£675 GBP
Retailer 5£699 GBP
Retailer 10£725 GBP
Retailer 11£735 GBP
Retailer 7£745 GBP
Retailer 4£779 GBP
Retailer 9£840 GBP
Retailer 1£848 GBP
Retailer 6£981 GBP
Retailer 3£1,030 GBP
Retailer 2£1,041 GBP
Wholesale Diamonds Direct£1,116 GBP

34 data points across 12 retailers

12 retailers£699 GBP to £1,116 GBP

Retailer 1
-
£675 GBP
Price last confirmed 9 days ago
A
Retailer 2
-
£699 GBP
View
Retailer 3
-
£725 GBP
View
Price last confirmed 7 days ago
A
Retailer 4
-
£735 GBP
View
Retailer 5
-
£745 GBP
View
Price last confirmed 7 days ago
A
Retailer 6
-
£779 GBP
View
Retailer 7
-
£840 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£848 GBP
View
Retailer 9
-
£981 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£1,030 GBP
View
B+
Retailer 11
-
£1,041 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
684459107 · Nov 6
£1,116 GBP
$1,494 USD
View
11 more retailers have this diamond
Prices start from £699 GBPSave up to £417 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
0.91ct Oval
£699 GBP