Heart|Natural|GIA

1.51ct K VS1 Heart Natural Diamond

EX • K/VS1 • GIA 3545730594

Certificate GIA 3545730594

Diamond specifications and retailer prices

From £2,701 GBP
As of November 5, 2026
Save £1,981 GBP (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,891 GBP at NZ Jewellers · As of September 30, 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 K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545730594. Listed at 10 retailers as of November 4, 2026, with a 73% 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
K
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545730594
Dimensions6.54 × 7.92 × 4.79 mm
L/W Ratio1.21
Top View
6.54 mm7.92 mm1.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3545730594
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 60.4%

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 5
Current: £3,268 GBP|Low: £2,513 GBP|High: £4,752 GBP|Avg: £3,446 GBP|+30.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6£2,650 GBP
Retailer 5£2,701 GBP
Retailer 2£2,906 GBP
Retailer 1£3,268 GBP
Retailer 3£3,426 GBP
Retailer 7£4,410 GBP
Retailer 4£4,682 GBP

43 data points across 7 retailers

10 retailers£2,701 GBP to £4,682 GBP

A
Cheapest Retailer
-
£2,701 GBP
Retailer 2
-
£2,808 GBP
View
Price last confirmed 29 days ago
Retailer 3
-
£2,808 GBP
View
Price last confirmed 29 days ago
A
Retailer 4
-
£2,906 GBP
View
Retailer 5
-
£2,915 GBP
View
Price last confirmed 36 days ago
Retailer 6
-
£3,239 GBP
View
Price last confirmed 38 days ago
B+
Retailer 7
-
£3,268 GBP
View
B+
Retailer 8
-
£3,426 GBP
View
B
Retailer 9
-
£4,682 GBP
View
Most Expensive
NZ Jewellers
8d07bebe-ca47-44d3-9ca9-d2c78f7ef1f6 · Sep 30
£4,891 GBP
$6,547 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from £2,701 GBPSave up to £1,981 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
£2,701 GBP