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Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 7551080907

Certificate GIA 7551080907

Diamond specifications and retailer prices

From £1,319 GBP
As of November 6, 2026
Save £1,198 GBP (48%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,517 GBP at With Clarity · As of November 6, 2026
View at With Clarity

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic 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 7551080907. Listed at 6 retailers as of November 6, 2026, with prices from £1,319 to £2,517, a £1,198 spread on the same certified stone. With Clarity lists it at £2,517. 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

1.20
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551080907
Dimensions8.18 × 5.86 × 3.76 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Pinpoint
Top View
8.18 mm5.86 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551080907
Side View
Table 61.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 64.1%

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: Nov 6
Current: £1,837 GBP|Low: £1,319 GBP|High: £2,587 GBP|Avg: £1,898 GBP|-5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
November 6, 2026
Retailer 4£1,319 GBP
Retailer 2£1,459 GBP
Retailer 5£1,617 GBP
Retailer 1£1,837 GBP
Retailer 3£1,950 GBP
Retailer 6£1,996 GBP
Retailer 7£2,250 GBP
With Clarity£2,517 GBP

18 data points across 8 retailers

6 retailers£1,319 GBP to £2,517 GBP

A
Cheapest Retailer
-
£1,319 GBP
A
Retailer 2
-
£1,459 GBP
View
A
Retailer 3
-
£1,617 GBP
View
A
Retailer 4
-
£1,837 GBP
View
A
Retailer 5
-
£1,950 GBP
View
Most Expensive
B
With Clarity
7551080907 · Nov 6
£2,517 GBP
$3,369 USD
View
5 more retailers have this diamond
Prices start from £1,319 GBPSave up to £1,198 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
1.20ct Oval
£1,319 GBP