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Heart|Natural|GIA

1.51ct L SI1 Heart Natural Diamond

EX • L/SI1 • GIA 6552460287

Certificate GIA 6552460287

Diamond specifications and retailer prices

From £2,443 GBP
As of November 5, 2026
Save £1,967 GBP (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,410 GBP at NZ Jewellers · As of November 5, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552460287. Listed at 10 retailers as of November 5, 2026, with prices from £2,443 to £4,410, a £1,967 spread on the same certified stone. NZ Jewellers lists it at £4,410. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552460287
Dimensions7.92 × 7.09 × 4.68 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.92 mm7.09 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552460287
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.1%

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 5
Current: £4,410 GBP|Low: £2,443 GBP|High: £4,410 GBP|Avg: £2,856 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£2,443 GBP
Retailer 2£2,489 GBP
Retailer 6£2,531 GBP
Retailer 8£2,531 GBP
Retailer 4£2,619 GBP
Retailer 9£2,628 GBP
Retailer 7£2,920 GBP
Retailer 3£2,947 GBP
Retailer 5£3,089 GBP
NZ Jewellers£4,410 GBP

36 data points across 10 retailers

10 retailers£2,443 GBP to £4,410 GBP

B+
Cheapest Retailer
-
£2,443 GBP
B+
Retailer 2
-
£2,489 GBP
View
B
Retailer 3
-
£2,531 GBP
View
Retailer 4
-
£2,531 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£2,619 GBP
View
B
Retailer 6
-
£2,628 GBP
View
B
Retailer 7
-
£2,920 GBP
View
B
Retailer 8
-
£2,947 GBP
View
B
Retailer 9
-
£3,089 GBP
View
Most Expensive
C
NZ Jewellers
6452a6dd-8696-44af-952e-602593faa753 · Nov 5
£4,410 GBP
$5,903 USD
View
9 more retailers have this diamond
Prices start from £2,443 GBPSave up to £1,967 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 Heart
£2,443 GBP