Oval|Natural|GIA

0.55ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1242088740

Certificate GIA 1242088740

Diamond specifications and retailer prices

From £560 GBP
As of November 4, 2026
Save £350 GBP (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £911 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.55ct natural oval diamond

This 0.55ct natural oval sits in the half to three-quarter 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 1242088740. Listed at 13 retailers as of November 4, 2026, with prices from £560 to £911, a £350 spread on the same certified stone. Frank Darling lists it at £911. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.16°
Pavilion angle39.1°
OriginNatural
Grading LabGIA
CertificateGIA 1242088740
Dimensions6.37 × 4.58 × 2.86 mm
L/W Ratio1.39
Culet sizeNone
Top View
6.37 mm4.58 mm0.55 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1242088740
Side View
Table 59.0%Crown 40.16°Girdle: STK-VTKPavilion 39.1°Culet: NoneDepth 62.4%

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 4
Current: £911 GBP|Low: £560 GBP|High: £932 GBP|Avg: £720 GBP|-2.3%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4£560 GBP
Retailer 6£598 GBP
Retailer 3£600 GBP
Retailer 12£601 GBP
Retailer 9£613 GBP
Retailer 5£616 GBP
Retailer 13£632 GBP
Retailer 8£660 GBP
Retailer 11£691 GBP
Retailer 7£804 GBP
Retailer 10£840 GBP
Retailer 2£897 GBP
Frank Darling£911 GBP

20 data points across 13 retailers

13 retailers£560 GBP to £911 GBP

A
Cheapest Retailer
-
£560 GBP
A
Retailer 2
-
£598 GBP
View
A
Retailer 3
-
£600 GBP
View
B+
Retailer 4
-
£601 GBP
View
B+
Retailer 5
-
£613 GBP
View
B+
Retailer 6
-
£616 GBP
View
B+
Retailer 7
-
£632 GBP
View
B+
Retailer 8
-
£660 GBP
View
B+
Retailer 9
-
£691 GBP
View
B+
Retailer 10
-
£804 GBP
View
B+
Retailer 11
-
£840 GBP
View
B
Retailer 12
-
£897 GBP
View
Most Expensive
B
Frank Darling
2706629HK · Nov 6
£911 GBP
$1,219 USD
View
12 more retailers have this diamond
Prices start from £560 GBPSave up to £350 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
£560 GBP