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Oval|Natural|GIA

3.50ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6555373989

Certificate GIA 6555373989

Diamond specifications and retailer prices

From £29,280 GBP
HK$306,500 HKD
As of October 30, 2026
Save £29,750 GBP (50%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £59,030 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 3.5ct natural oval diamond

This 3.5ct natural oval sits in the three to five 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 6555373989. Listed at 5 retailers as of October 30, 2026, with prices from £29,280 to £59,030, a £29,750 spread on the same certified stone. With Clarity lists it at £59,030. 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

3.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555373989
Dimensions11.90 × 8.51 × 5.41 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
11.90 mm8.51 mm3.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555373989
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.5%

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: Oct 30
Current: £35,915 GBP|Low: £29,280 GBP|High: £59,030 GBP|Avg: £37,757 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
October 27, 2026
Retailer 2£29,280 GBP
Retailer 6£32,785 GBP
Retailer 7£34,243 GBP
Retailer 5£35,095 GBP
Retailer 1£35,915 GBP
Retailer 3£36,769 GBP
Retailer 4£37,900 GBP
With Clarity£59,030 GBP

11 data points across 8 retailers

5 retailers£29,280 GBP to £59,030 GBP

B+
Cheapest Retailer
-
£29,280 GBP
HK$306,500 HKD
B
Retailer 2
-
£35,915 GBP
$48,122 USD
View
B+
Retailer 3
-
£36,769 GBP
SGD 66,576 SGD
View
B
Retailer 4
-
£37,900 GBP
$50,782 USD
View
Most Expensive
B
With Clarity
6555373989 · Oct 30
£59,030 GBP
$79,094 USD
View
4 more retailers have this diamond
Prices start from £29,280 GBPSave up to £29,750 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+
3.50ct Oval
£29,280 GBP