CaratHunter
Plans
Oval|Natural|GIA

1.28ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 7542367540

Certificate GIA 7542367540

Diamond specifications and retailer prices

From £1,794 GBP
As of November 4, 2026
Save £1,979 GBP (52%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,773 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.28ct natural oval diamond

This 1.28ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7542367540. Listed at 5 retailers as of November 4, 2026, with prices from £1,794 to £3,773, a £1,979 spread on the same certified stone. MOH London lists it at £3,773. 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

1.28
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7542367540
Dimensions8.48 × 6.06 × 3.81 mm
L/W Ratio1.40
Cert comments
Additional twinning wisps, additional clouds, pinpoints and surface graining are not shown.
Key to symbols
Twinning Wisp, Cloud, Feather, Crystal, Cavity, Needle, Indented Natural, Natural, Extra Facet
Top View
8.48 mm6.06 mm1.28 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7542367540
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.9%

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 4
Current: £3,773 GBP|Low: £1,468 GBP|High: £3,829 GBP|Avg: £2,487 GBP|+5.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£1,794 GBP
Retailer 5£1,916 GBP
Retailer 2£2,380 GBP
Retailer 3£2,647 GBP
MOH London£3,773 GBP

40 data points across 5 retailers

5 retailers£1,794 GBP to £3,773 GBP

A
Cheapest Retailer
-
£1,794 GBP
Final sale: no returns
A
Retailer 2
-
£1,916 GBP
View
A
Retailer 3
-
£2,380 GBP
View
B+
Retailer 4
-
£2,647 GBP
View
Most Expensive
B
MOH London
8ACAE822A · Nov 4
£3,773 GBP
View
4 more retailers have this diamond
Prices start from £1,794 GBPSave up to £1,979 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
1.28ct Oval
£1,794 GBP