CaratHunter
Plans
Heart|Natural|GIA

1.51ct K VS1 Heart Natural Diamond

EX • K/VS1 • GIA 3565431298

Certificate GIA 3565431298

Diamond specifications and retailer prices

From £2,762 GBP
As of November 6, 2026
Save £523 GBP (16%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,285 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

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 3565431298. Listed at 4 retailers as of November 5, 2026, with prices from £2,762 to £3,285, a £523 spread on the same certified stone. Blue Nile lists it at £3,285. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3565431298
Dimensions6.80 × 8.04 × 4.60 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Crystal, Pinpoint, Natural
Top View
6.80 mm8.04 mm1.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3565431298
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.2%

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 6
Current: £3,285 GBP|Low: £2,762 GBP|High: £3,378 GBP|Avg: £3,061 GBP|-2.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£2,762 GBP
Retailer 4£2,932 GBP
Retailer 2£2,945 GBP
Blue Nile£3,285 GBP

36 data points across 4 retailers

4 retailers£2,762 GBP to £3,285 GBP

A
Cheapest Retailer
-
£2,762 GBP
A
Retailer 2
-
£2,932 GBP
View
A
Retailer 3
-
£2,945 GBP
View
Most Expensive
B+
Blue Nile
30289174 · Nov 5
£3,285 GBP
$4,397 USD
View
3 more retailers have this diamond
Prices start from £2,762 GBPSave up to £523 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
£2,762 GBP