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Oval|Natural|GIA

0.90ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 3555689685

Certificate GIA 3555689685

Diamond specifications and retailer prices

From £732 GBP
HK$7,600 HKD
As of October 29, 2026
Save £1,208 GBP (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,493 GBP at NZ Jewellers · As of October 14, 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 H 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 3555689685. Listed at 11 retailers as of October 29, 2026, with a 165% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle35.65°
OriginNatural
Grading LabGIA
CertificateGIA 3555689685
Dimensions7.61 × 5.23 × 3.36 mm
L/W Ratio1.46
Key to symbols
Crystal, Needle
Top View
7.61 mm5.23 mm0.90 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555689685
Side View
Table 60.0%CrownGirdle: THK-VTKPavilion 35.65°Culet: NoneDepth 64.3%

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: £938 GBP|Low: £732 GBP|High: £2,030 GBP|Avg: £1,351 GBP|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 6£732 GBP
Retailer 1£938 GBP
Retailer 8£1,024 GBP
Retailer 7£1,025 GBP
Retailer 4£1,392 GBP
Retailer 5£1,817 GBP
Retailer 3£1,846 GBP
Retailer 2£1,940 GBP

29 data points across 8 retailers

11 retailers£732 GBP to £1,940 GBP

A
Cheapest Retailer
-
£732 GBP
HK$7,600 HKD
B+
Retailer 2
-
£938 GBP
€1,187 EUR
View
A
Retailer 3
-
£1,022 GBP
$1,358 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£1,024 GBP
$1,361 USD
View
A
Retailer 5
-
£1,025 GBP
SGD 1,840 SGD
View
B+
Retailer 6
-
£1,110 GBP
$1,475 USD
View
Price last confirmed 29 days ago
B+
Retailer 7
-
£1,392 GBP
€1,762 EUR
View
B
Retailer 8
-
£1,817 GBP
€2,300 EUR
View
B
Retailer 9
-
£1,846 GBP
View
B
Retailer 10
-
£1,940 GBP
View
Most Expensive
B
NZ Jewellers
973b3b50-d7df-4672-9195-64a2dc40f4ab · Oct 14
£2,493 GBP
$3,312 USD
View
Price last confirmed 15 days ago
10 more retailers have this diamond
Prices start from £732 GBPSave up to £1,208 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
£732 GBP