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Heart|Natural|GIA

1.51ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 2514349748

Certificate GIA 2514349748

Diamond specifications and retailer prices

From £3,497 GBP
As of November 5, 2026
Save £3,990 GBP (53%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £7,487 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2514349748. Listed at 25 retailers as of November 5, 2026, with prices from £3,497 to £7,487, a £3,990 spread on the same certified stone. NZ Jewellers lists it at £7,487. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2514349748
Dimensions6.91 × 8.17 × 4.65 mm
L/W Ratio1.18
Top View
6.91 mm8.17 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2514349748
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 56.9%

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: £7,487 GBP|Low: £3,024 GBP|High: £7,487 GBP|Avg: £4,558 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 8
Retailer 9
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Retailer 11
Retailer 12
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Retailer 17
Retailer 18
Retailer 19
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Retailer 22
Retailer 23
November 6, 2026
Retailer 9£3,497 GBP
Retailer 19£3,537 GBP
Retailer 4£3,538 GBP
Retailer 16£3,550 GBP
Retailer 22£3,581 GBP
Retailer 7£3,586 GBP
Retailer 8£3,743 GBP
Retailer 6£4,009 GBP
Retailer 11£4,055 GBP
Retailer 21£4,055 GBP
Retailer 13£4,127 GBP
Retailer 17£4,297 GBP
Retailer 2£4,337 GBP
Retailer 12£4,535 GBP
Retailer 23£4,535 GBP
Retailer 15£4,562 GBP
Retailer 14£4,589 GBP
Retailer 3£4,679 GBP
Retailer 5£4,684 GBP
Retailer 18£5,461 GBP
Retailer 10£6,485 GBP
Retailer 20£6,577 GBP
NZ Jewellers£7,487 GBP

45 data points across 23 retailers

25 retailers£3,497 GBP to £7,487 GBP

A
Cheapest Retailer
-
£3,497 GBP
A
Retailer 2
-
£3,537 GBP
View
A
Retailer 3
-
£3,538 GBP
View
A
Retailer 4
-
£3,550 GBP
View
A
Retailer 5
-
£3,581 GBP
View
A
Retailer 6
-
£3,586 GBP
View
A
Retailer 7
-
£3,743 GBP
View
Final sale: no returns
B+
Retailer 8
-
£4,009 GBP
View
B+
Retailer 9
-
£4,055 GBP
View
B+
Retailer 10
-
£4,055 GBP
View
Retailer 11
-
£4,125 GBP
View
Price last confirmed 15 days ago
B+
Retailer 12
-
£4,127 GBP
View
Retailer 13
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£4,159 GBP
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£4,297 GBP
View
B+
Retailer 15
-
£4,337 GBP
View
B+
Retailer 16
-
£4,535 GBP
View
B+
Retailer 17
-
£4,535 GBP
View
Retailer 18
-
£4,562 GBP
View
Price last confirmed 34 days ago
B+
Retailer 19
-
£4,589 GBP
View
B+
Retailer 20
-
£4,679 GBP
View
B+
Retailer 21
-
£4,684 GBP
View
B+
Retailer 22
-
£5,461 GBP
View
B
Retailer 23
-
£6,485 GBP
View
B
Retailer 24
-
£6,577 GBP
View
Most Expensive
B
NZ Jewellers
36f1133e-77d3-4026-868f-2914467a8e0f · Nov 5
£7,487 GBP
$10,021 USD
View
24 more retailers have this diamond
Prices start from £3,497 GBPSave up to £3,990 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
£3,497 GBP