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Oval|Natural|GIA

0.55ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1547401406

Certificate GIA 1547401406

Diamond specifications and retailer prices

From £388 GBP
As of November 6, 2026
Save £832 GBP (68%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,220 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.55ct natural oval diamond

This 0.55ct natural oval sits in the half to three-quarter 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 1547401406. Listed at 6 retailers as of November 2, 2026, with prices from £388 to £1,220, a £832 spread on the same certified stone. MOH London lists it at £1,220. 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

0.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1547401406
Dimensions6.39 × 4.68 × 2.91 mm
L/W Ratio1.37
Key to symbols
Feather, Twinning Wisp, Knot
Top View
6.39 mm4.68 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1547401406
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCuletDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,220 GBP|Low: £388 GBP|High: £1,235 GBP|Avg: £757 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2£388 GBP
Retailer 3£643 GBP
Retailer 4£751 GBP
Retailer 5£794 GBP
MOH London£1,220 GBP

42 data points across 5 retailers

6 retailers£388 GBP to £1,220 GBP

A
Cheapest Retailer
-
£388 GBP
B+
Retailer 2
-
£612 GBP
View
B
Retailer 3
-
£643 GBP
View
B
Retailer 4
-
£751 GBP
View
Retailer 5
-
£794 GBP
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
F49B1DE35 · Nov 2
£1,220 GBP
View
5 more retailers have this diamond
Prices start from £388 GBPSave up to £832 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
0.55ct Oval
£388 GBP