Oval|Natural|GIA

0.90ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 7518500909

Certificate GIA 7518500909

Diamond specifications and retailer prices

From £1,694 GBP
$2,273 USD
As of November 2, 2026
Save £1,405 GBP (45%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £4,495 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 0.9ct natural oval diamond

This 0.9ct natural oval sits in the just-under-one-carat band, graded F 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 7518500909. Listed at 26 retailers as of October 26, 2026, with a 83% 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

0.90
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.11°
Pavilion angle34.99°
OriginNatural
Grading LabGIA
CertificateGIA 7518500909
Dimensions7.59 × 5.42 × 3.24 mm
L/W Ratio1.40
Key to symbols
Crystal, Cloud, Feather
Top View
7.59 mm5.42 mm0.90 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7518500909
Side View
Table 63.0%Crown 36.11°Girdle: THK-VTKPavilion 34.99°Culet: NoneDepth 59.8%

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 2
Current: £2,520 GBP|Low: £1,549 GBP|High: £4,194 GBP|Avg: £2,540 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
November 2, 2026
Retailer 3£1,694 GBP
Retailer 8£1,797 GBP
Retailer 10£2,022 GBP
Retailer 11£2,113 GBP
Retailer 2£2,115 GBP
Retailer 9£2,418 GBP
Retailer 1£2,520 GBP
Retailer 4£2,599 GBP
Retailer 7£3,132 GBP
Retailer 6£3,615 GBP
Retailer 5£4,161 GBP

39 data points across 11 retailers

26 retailers£1,694 GBP to £3,099 GBP

B+
Cheapest Retailer
-
£1,694 GBP
$2,273 USD
Retailer 2
-
£1,744 GBP
$2,341 USD
View
Price last confirmed 13 days ago
B+
Retailer 3
-
£1,751 GBP
$2,350 USD
View
Retailer 4
-
£1,829 GBP
$2,455 USD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
£1,838 GBP
$2,466 USD
View
Retailer 6
-
£1,923 GBP
$2,580 USD
View
Price last confirmed 13 days ago
Retailer 7
-
£1,948 GBP
$2,614 USD
View
Price last confirmed 13 days ago
Retailer 8
-
£1,948 GBP
$2,614 USD
View
Price last confirmed 17 days ago
Retailer 9
-
£1,977 GBP
$2,653 USD
View
Price last confirmed 15 days ago
Retailer 10
-
£2,022 GBP
$2,714 USD
View
Price last confirmed 16 days ago
B
Retailer 11
-
£2,113 GBP
$2,835 USD
View
Retailer 12
-
£2,115 GBP
$2,838 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
£2,130 GBP
CA$3,969 CAD
View
Retailer 14
-
£2,228 GBP
$2,990 USD
View
Price last confirmed 13 days ago
Retailer 15
-
£2,228 GBP
$2,990 USD
View
Price last confirmed 14 days ago
Retailer 16
-
£2,247 GBP
$3,016 USD
View
Price last confirmed 14 days ago
Retailer 17
-
£2,303 GBP
$3,090 USD
View
Price last confirmed 14 days ago
Retailer 18
-
£2,418 GBP
A$4,992 AUD
View
Price last confirmed 29 days ago
B
Retailer 19
-
£2,465 GBP
$3,308 USD
View
B
Retailer 20
-
£2,520 GBP
€3,221 EUR
View
B
Retailer 21
-
£2,599 GBP
View
B
Retailer 22
-
£2,605 GBP
$3,496 USD
View
B
Retailer 23
-
£3,099 GBP
$4,158 USD
View
Retailer 24
-
£3,132 GBP
ZAR 67,898 ZAR
View
Price last confirmed 16 days ago
Retailer 25
-
£3,615 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
111379ab-9cd7-4522-9ec0-5d5e7d19f95a · Oct 17
£4,495 GBP
$6,032 USD
View
Price under review
25 more retailers have this diamond
Prices start from £1,694 GBPSave up to £1,405 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+
0.90ct Oval
£1,694 GBP