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Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 7426492341

Certificate GIA 7426492341

Diamond specifications and retailer prices

From £2,550 GBP
₹325,433 INR
As of November 1, 2026
Save £2,801 GBP (52%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,853 GBP at NZ Jewellers · As of September 25, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7426492341. Listed at 17 retailers as of November 1, 2026, with a 110% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7426492341
Dimensions7.46 × 7.99 × 4.29 mm
L/W Ratio1.07
Top View
7.46 mm7.99 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7426492341
Side View
Table 55.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 53.7%

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 1
Current: £3,801 GBP|Low: £2,544 GBP|High: £5,416 GBP|Avg: £3,398 GBP|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3£2,550 GBP
Retailer 6£2,869 GBP
Retailer 7£2,930 GBP
Retailer 5£3,100 GBP
Retailer 8£3,294 GBP
Retailer 2£3,437 GBP
Retailer 1£3,801 GBP
Retailer 4£5,351 GBP

41 data points across 8 retailers

17 retailers£2,550 GBP to £5,351 GBP

A
Cheapest Retailer
-
£2,550 GBP
₹325,433 INR
A
Retailer 2
-
£2,784 GBP
A$5,740 AUD
View
A
Retailer 3
-
£2,869 GBP
$3,844 USD
View
A
Retailer 4
-
£2,930 GBP
$3,926 USD
View
B+
Retailer 5
-
£3,100 GBP
$4,154 USD
View
Final sale: no returns
Retailer 6
-
£3,294 GBP
View
Price last confirmed 33 days ago
Retailer 7
-
£3,360 GBP
$4,502 USD
View
Price last confirmed 37 days ago
Retailer 8
-
£3,360 GBP
$4,502 USD
View
Price last confirmed 32 days ago
Retailer 9
-
£3,360 GBP
$4,502 USD
View
Price last confirmed 25 days ago
Retailer 10
-
£3,360 GBP
$4,502 USD
View
Price last confirmed 17 days ago
A
Retailer 11
-
£3,437 GBP
View
B+
Retailer 12
-
£3,801 GBP
€4,850 EUR
View
Retailer 13
-
£3,876 GBP
$5,194 USD
View
Price last confirmed 39 days ago
Retailer 14
-
£3,876 GBP
$5,194 USD
View
Price last confirmed 24 days ago
B+
Retailer 15
-
£5,351 GBP
View
Retailer 16
-
£5,853 GBP
$7,843 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
f607889e-0a75-4f1f-8e4a-9a7864b97e54 · Sep 25
£5,853 GBP
$7,843 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from £2,550 GBPSave up to £2,801 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
£2,550 GBP