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Round|Natural|GIA

1.51ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 2426090092

Certificate GIA 2426090092

Diamond specifications and retailer prices

From £9,708 GBP
As of November 4, 2026
Save £6,108 GBP (39%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £17,389 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 2426090092. Listed at 23 retailers as of November 4, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2426090092
Dimensions7.51 × 7.46 × 4.43 mm
L/W Ratio1.01
Top View
7.51 mm7.46 mm1.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2426090092
Side View
Table 61.0%CrownGirdle: MediumPavilionCulet: NoneDepth 59.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £17,389 GBP|Low: £9,708 GBP|High: £17,646 GBP|Avg: £13,106 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4£9,708 GBP
Retailer 7£10,699 GBP
Retailer 3£11,558 GBP
Retailer 6£11,725 GBP
Retailer 8£11,908 GBP
Retailer 2£12,929 GBP
Retailer 5£16,401 GBP
MOH London£17,389 GBP

44 data points across 8 retailers

23 retailers£9,708 GBP to £15,816 GBP

B+
Cheapest Retailer
-
£9,708 GBP
B
Retailer 2
-
£10,213 GBP
View
B
Retailer 3
-
£10,263 GBP
View
B
Retailer 4
-
£10,456 GBP
View
B
Retailer 5
-
£10,699 GBP
View
Final sale: no returns
B
Retailer 6
-
£10,945 GBP
View
Retailer 7
-
£11,164 GBP
View
Price last confirmed 7 days ago
B
Retailer 8
-
£11,558 GBP
View
Retailer 9
-
£11,725 GBP
View
Price last confirmed 13 days ago
B
Retailer 10
-
£11,908 GBP
View
Retailer 11
-
£12,094 GBP
View
Price last confirmed 59 days ago
B
Retailer 12
-
£12,094 GBP
View
Retailer 13
-
£12,559 GBP
View
Price last confirmed 59 days ago
B
Retailer 14
-
£12,559 GBP
View
B
Retailer 15
-
£12,578 GBP
View
B
Retailer 16
-
£12,578 GBP
View
B
Retailer 17
-
£12,929 GBP
View
B
Retailer 18
-
£12,967 GBP
View
B
Retailer 19
-
£13,000 GBP
View
B
Retailer 20
-
£13,056 GBP
View
B
Retailer 21
-
£15,816 GBP
View
Retailer 22
-
£16,401 GBP
View
Price under review
Most Expensive
MOH London
656D94B9E · Nov 4
£17,389 GBP
View
Price under review
22 more retailers have this diamond
Prices start from £9,708 GBPSave up to £6,108 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.

B+
1.51ct Round
£9,708 GBP