Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 2534498189

Certificate GIA 2534498189

Diamond specifications and retailer prices

From £3,145 GBP
As of November 5, 2026
Save £297 GBP (9%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,154 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2534498189. Listed at 12 retailers as of November 5, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2534498189
Dimensions7.16 × 7.76 × 4.56 mm
L/W Ratio1.08
Top View
7.16 mm7.76 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2534498189
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £3,145 GBP|Low: £2,629 GBP|High: £6,291 GBP|Avg: £3,789 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9£2,629 GBP
Retailer 12£2,649 GBP
Retailer 3£2,988 GBP
Retailer 7£3,043 GBP
Retailer 1£3,145 GBP
Retailer 8£3,209 GBP
Retailer 2£3,252 GBP
Retailer 6£3,275 GBP
Retailer 4£3,442 GBP
Retailer 10£3,963 GBP
Retailer 11£5,678 GBP
Retailer 5£5,987 GBP

21 data points across 12 retailers

12 retailers£3,145 GBP to £3,442 GBP

Retailer 1
-
£2,649 GBP
Price last confirmed 30 days ago
Retailer 2
-
£3,043 GBP
View
Price last confirmed 29 days ago
A
Retailer 3
-
£3,145 GBP
View
A
Retailer 4
-
£3,252 GBP
View
A
Retailer 5
-
£3,442 GBP
View
Retailer 6
-
£3,532 GBP
View
Price last confirmed 30 days ago
Retailer 7
-
£3,532 GBP
View
Price last confirmed 30 days ago
Retailer 8
-
£3,532 GBP
View
Price last confirmed 37 days ago
Retailer 9
-
£3,651 GBP
View
Price last confirmed 29 days ago
Retailer 10
-
£5,678 GBP
View
Price last confirmed 30 days ago
Retailer 11
-
£5,987 GBP
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
efc35911-07f0-41a5-bd8e-8c684a4976dc · Sep 30
£6,154 GBP
$8,237 USD
View
Price last confirmed 37 days ago
11 more retailers have this diamond
Prices start from £3,145 GBPSave up to £297 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
£3,145 GBP