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Round|Natural|GIA

1.51ct F VS1 Round Natural Diamond

EX • F/VS1 • GIA 2506409673

Certificate GIA 2506409673

Diamond specifications and retailer prices

From £9,408 GBP
As of November 7, 2026
Save £9,225 GBP (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £18,633 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 2506409673. Listed at 22 retailers as of November 5, 2026, with prices from £9,408 to £18,633, a £9,225 spread on the same certified stone. Diamond Quarter lists it at £18,633. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2506409673
Dimensions7.27 × 7.31 × 4.57 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
7.27 mm7.31 mm1.51 ctF / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2506409673
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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 7
Current: £12,654 GBP|Low: £9,380 GBP|High: £15,228 GBP|Avg: £12,023 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 4£9,408 GBP
Retailer 8£10,316 GBP
Retailer 7£10,474 GBP
Retailer 9£11,483 GBP
Retailer 5£12,263 GBP
Retailer 2£12,366 GBP
Retailer 1£12,654 GBP
Retailer 6£14,229 GBP
Retailer 3£14,965 GBP

45 data points across 9 retailers

22 retailers£9,408 GBP to £18,633 GBP

B+
Cheapest Retailer
-
£9,408 GBP
B+
Retailer 2
-
£9,662 GBP
View
B+
Retailer 3
-
£9,869 GBP
View
B+
Retailer 4
-
£9,898 GBP
View
B+
Retailer 5
-
£10,316 GBP
View
Final sale: no returns
Retailer 6
-
£10,474 GBP
View
Price last confirmed 15 days ago
B+
Retailer 7
-
£10,564 GBP
View
B+
Retailer 8
-
£10,706 GBP
View
B+
Retailer 9
-
£10,706 GBP
View
Retailer 10
-
£10,765 GBP
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£11,065 GBP
View
B+
Retailer 12
-
£11,483 GBP
View
B+
Retailer 13
-
£11,662 GBP
View
B+
Retailer 14
-
£11,955 GBP
View
B+
Retailer 15
-
£12,111 GBP
View
B+
Retailer 16
-
£12,263 GBP
View
B
Retailer 17
-
£12,366 GBP
View
B
Retailer 18
-
£12,654 GBP
View
B
Retailer 19
-
£13,817 GBP
View
B
Retailer 20
-
£14,229 GBP
View
B
Retailer 21
-
£14,965 GBP
View
Most Expensive
B
Diamond Quarter
1.51VS1F2573A3D8N · Nov 5
£18,633 GBP
View
21 more retailers have this diamond
Prices start from £9,408 GBPSave up to £9,225 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
£9,408 GBP