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Heart|Natural|GIA

1.51ct G VS1 Heart Natural Diamond

EX • G/VS1 • GIA 6541911727

Certificate GIA 6541911727

Diamond specifications and retailer prices

From £3,804 GBP
As of November 4, 2026
Save £4,230 GBP (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £9,693 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541911727. Listed at 18 retailers as of November 4, 2026, with a 111% 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
G
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6541911727
Dimensions6.58 × 7.78 × 4.96 mm
L/W Ratio1.18
Top View
6.58 mm7.78 mm1.51 ctG / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541911727
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

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: £4,384 GBP|Low: £3,737 GBP|High: £8,034 GBP|Avg: £4,897 GBP|-5.5%
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
Retailer 14
Retailer 15
November 5, 2026
Retailer 3£3,804 GBP
Retailer 12£4,081 GBP
Retailer 7£4,100 GBP
Retailer 14£4,101 GBP
Retailer 4£4,280 GBP
Retailer 11£4,310 GBP
Retailer 10£4,346 GBP
Retailer 1£4,384 GBP
Retailer 15£4,465 GBP
Retailer 2£4,525 GBP
Retailer 8£4,675 GBP
Retailer 6£5,083 GBP
Retailer 5£6,191 GBP
Retailer 9£7,519 GBP
Retailer 13£8,034 GBP

28 data points across 15 retailers

18 retailers£3,804 GBP to £8,034 GBP

A
Cheapest Retailer
-
£3,804 GBP
A
Retailer 2
-
£4,081 GBP
View
A
Retailer 3
-
£4,100 GBP
View
A
Retailer 4
-
£4,101 GBP
View
A
Retailer 5
-
£4,280 GBP
View
Final sale: no returns
A
Retailer 6
-
£4,310 GBP
View
A
Retailer 7
-
£4,346 GBP
View
A
Retailer 8
-
£4,384 GBP
View
A
Retailer 9
-
£4,465 GBP
View
A
Retailer 10
-
£4,525 GBP
View
A
Retailer 11
-
£4,675 GBP
View
Retailer 12
-
£5,083 GBP
View
Price last confirmed 14 days ago
Retailer 13
-
£5,706 GBP
View
Price last confirmed 26 days ago
A
Retailer 14
-
£5,775 GBP
View
A
Retailer 15
-
£6,191 GBP
View
B+
Retailer 16
-
£7,519 GBP
View
B
Retailer 17
-
£8,034 GBP
View
Most Expensive
NZ Jewellers
196db6d9-1064-4bef-9084-5c4bf6e07db6 · Sep 25
£9,693 GBP
$13,046 USD
View
Price last confirmed 41 days ago
17 more retailers have this diamond
Prices start from £3,804 GBPSave up to £4,230 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 Heart
£3,804 GBP