CaratHunter
Plans
Round|Natural|GIA

1.51ct G FL Round Natural Diamond

EX • G/FL • GIA 2506220512

Certificate GIA 2506220512

Diamond specifications and retailer prices

From £9,593 GBP
As of November 5, 2026
Save £10,484 GBP (52%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £20,077 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 G colour (near-colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2506220512. Listed at 3 retailers as of November 5, 2026, with prices from £9,593 to £20,077, a £10,484 spread on the same certified stone. Diamond Quarter lists it at £20,077. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2506220512
Dimensions7.35 × 7.30 × 4.49 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
7.35 mm7.30 mm1.51 ctG / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506220512
Side View
Table 60.0%Crown 34.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.3%

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 5
Current: £9,593 GBP|Low: £8,415 GBP|High: £13,425 GBP|Avg: £10,735 GBP|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 9£8,558 GBP
Retailer 5£8,767 GBP
Retailer 1£9,593 GBP
Retailer 6£9,677 GBP
Retailer 10£10,099 GBP
Retailer 13£10,296 GBP
Retailer 8£10,773 GBP
Retailer 11£11,153 GBP
Retailer 3£11,289 GBP
Retailer 4£11,355 GBP
Retailer 7£11,737 GBP
Retailer 12£13,352 GBP
Retailer 2£13,425 GBP

8 data points across 13 retailers

3 retailers£9,593 GBP to £20,077 GBP

A
Cheapest Retailer
-
£9,593 GBP
A
Retailer 2
-
£9,677 GBP
View
Final sale: no returns
Most Expensive
B
Diamond Quarter
1.51FLG251280B3N · Nov 5
£20,077 GBP
View
2 more retailers have this diamond
Prices start from £9,593 GBPSave up to £10,484 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
1.51ct Round
£9,593 GBP