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Oval|Natural|GIA

0.90ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 5556689630

Certificate GIA 5556689630

Diamond specifications and retailer prices

From £703 GBP
HK$7,300 HKD
As of October 29, 2026
Save £1,106 GBP (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,495 GBP at NZ Jewellers · As of October 3, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556689630. Listed at 11 retailers as of October 26, 2026, with a 157% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle35.42°
OriginNatural
Grading LabGIA
CertificateGIA 5556689630
Dimensions7.55 × 5.35 × 3.30 mm
L/W Ratio1.41
Key to symbols
Crystal, Feather
Top View
7.55 mm5.35 mm0.90 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5556689630
Side View
Table 61.0%CrownGirdle: THK-VTKPavilion 35.42°Culet: NoneDepth 61.6%

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: Oct 29
Current: £906 GBP|Low: £703 GBP|High: £1,942 GBP|Avg: £1,267 GBP|-20.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 4£703 GBP
Retailer 1£906 GBP
Retailer 7£991 GBP
Retailer 5£991 GBP
Retailer 8£1,290 GBP
Retailer 2£1,342 GBP
Retailer 3£1,754 GBP
Retailer 6£1,809 GBP

41 data points across 8 retailers

11 retailers£703 GBP to £1,809 GBP

A
Cheapest Retailer
-
£703 GBP
HK$7,300 HKD
A
Retailer 2
-
£906 GBP
€1,146 EUR
View
A
Retailer 3
-
£991 GBP
$1,317 USD
View
A
Retailer 4
-
£991 GBP
SGD 1,780 SGD
View
B+
Retailer 5
-
£1,023 GBP
$1,359 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
£1,089 GBP
$1,447 USD
View
Price last confirmed 29 days ago
B+
Retailer 7
-
£1,290 GBP
A$2,638 AUD
View
B+
Retailer 8
-
£1,342 GBP
€1,698 EUR
View
B
Retailer 9
-
£1,754 GBP
€2,220 EUR
View
B
Retailer 10
-
£1,809 GBP
View
Most Expensive
B
NZ Jewellers
73a0dde9-8b80-4e99-9b46-d7b246137f15 · Oct 3
£2,495 GBP
$3,315 USD
View
Price last confirmed 26 days ago
10 more retailers have this diamond
Prices start from £703 GBPSave up to £1,106 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
0.90ct Oval
£703 GBP