Round|Natural|GIA

1.34ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 1538118889

Certificate GIA 1538118889

Diamond specifications and retailer prices

From £941 GBP
As of November 4, 2026
Save £668 GBP (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,110 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.34ct natural round diamond

This 1.34ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538118889. Listed at 13 retailers as of November 4, 2026, with a 71% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.34
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1538118889
Dimensions6.96 × 7.01 × 4.38 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural
Top View
6.96 mm7.01 mm1.34 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1538118889
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.7%

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: £1,253 GBP|Low: £941 GBP|High: £1,730 GBP|Avg: £1,270 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8£941 GBP
Retailer 2£954 GBP
Retailer 6£1,161 GBP
Retailer 1£1,253 GBP
Retailer 5£1,259 GBP
Retailer 7£1,326 GBP
Retailer 3£1,556 GBP
Retailer 4£1,609 GBP

43 data points across 8 retailers

13 retailers£941 GBP to £1,609 GBP

A
Cheapest Retailer
-
£941 GBP
A
Retailer 2
-
£954 GBP
View
A
Retailer 3
-
£1,161 GBP
View
A
Retailer 4
-
£1,253 GBP
View
B+
Retailer 5
-
£1,259 GBP
View
Retailer 6
-
£1,275 GBP
View
Price last confirmed 29 days ago
Retailer 7
-
£1,275 GBP
View
Price last confirmed 29 days ago
B+
Retailer 8
-
£1,326 GBP
View
Retailer 9
-
£1,334 GBP
View
Price last confirmed 38 days ago
Retailer 10
-
£1,471 GBP
View
Price last confirmed 28 days ago
B+
Retailer 11
-
£1,556 GBP
View
B+
Retailer 12
-
£1,609 GBP
View
Most Expensive
NZ Jewellers
87716a94-98ab-4fc0-9d41-27a52181bb58 · Sep 28
£3,110 GBP
$4,186 USD
View
Price last confirmed 39 days ago
12 more retailers have this diamond
Prices start from £941 GBPSave up to £668 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
1.34ct Round
£941 GBP