Oval|Natural|GIA

0.91ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 1558316287

Certificate GIA 1558316287

Diamond specifications and retailer prices

From £1,307 GBP
HK$13,700 HKD
As of November 1, 2026
Save £1,371 GBP (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,195 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.91ct natural oval diamond

This 0.91ct natural oval sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558316287. Listed at 16 retailers as of November 1, 2026, with a 105% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.91
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558316287
Dimensions7.79 × 5.52 × 3.40 mm
L/W Ratio1.41
Key to symbols
Cloud, Crystal, Feather
Top View
7.79 mm5.52 mm0.91 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1558316287
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,676 GBP|Low: £1,293 GBP|High: £2,710 GBP|Avg: £1,690 GBP|+4.6%
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 3, 2026
Retailer 11£1,307 GBP
Retailer 2£1,381 GBP
Retailer 16£1,406 GBP
Retailer 14£1,410 GBP
Retailer 3£1,528 GBP
Retailer 5£1,528 GBP
Retailer 8£1,542 GBP
Retailer 13£1,550 GBP
Retailer 7£1,631 GBP
Retailer 6£1,639 GBP
Retailer 1£1,676 GBP
Retailer 4£1,763 GBP
Retailer 15£1,884 GBP
Retailer 9£2,087 GBP
Retailer 12£2,254 GBP
Retailer 10£2,677 GBP

43 data points across 16 retailers

16 retailers£1,307 GBP to £2,677 GBP

B+
Cheapest Retailer
-
£1,307 GBP
HK$13,700 HKD
B+
Retailer 2
-
£1,381 GBP
$1,853 USD
View
B+
Retailer 3
-
£1,410 GBP
$1,892 USD
View
Final sale: no returns
Retailer 4
-
£1,528 GBP
$2,051 USD
View
Price last confirmed 26 days ago
Retailer 5
-
£1,528 GBP
$2,051 USD
View
Price last confirmed 26 days ago
B
Retailer 6
-
£1,550 GBP
$2,080 USD
View
Retailer 7
-
£1,598 GBP
$2,145 USD
View
Price last confirmed 34 days ago
B
Retailer 8
-
£1,631 GBP
$2,189 USD
View
B
Retailer 9
-
£1,639 GBP
$2,200 USD
View
B
Retailer 10
-
£1,676 GBP
View
Retailer 11
-
£1,763 GBP
$2,366 USD
View
Price last confirmed 34 days ago
Retailer 12
-
£1,884 GBP
A$3,890 AUD
View
Price last confirmed 28 days ago
B
Retailer 13
-
£2,087 GBP
€2,667 EUR
View
B
Retailer 14
-
£2,254 GBP
ZAR 48,865 ZAR
View
B
Retailer 15
-
£2,677 GBP
View
Most Expensive
NZ Jewellers
9c7510db-2e3b-4e12-9e9f-e7399acba7e2 · Sep 30
£3,195 GBP
$4,287 USD
View
Price last confirmed 33 days ago
15 more retailers have this diamond
Prices start from £1,307 GBPSave up to £1,371 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.

B+
0.91ct Oval
£1,307 GBP