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Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 7558360360

Certificate GIA 7558360360

Diamond specifications and retailer prices

From £2,230 GBP
$2,993 USD
As of November 2, 2026
Save £4,078 GBP (65%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,309 GBP at NZ Jewellers · As of November 3, 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 7558360360. Listed at 16 retailers as of November 2, 2026, with prices from £2,230 to £6,309, a £4,078 spread on the same certified stone. NZ Jewellers lists it at £6,309. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.8°
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 7558360360
Dimensions6.86 × 7.72 × 4.60 mm
L/W Ratio1.13
Culet sizeNone
Top View
6.86 mm7.72 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558360360
Side View
Table 57.0%Crown 40.8°Girdle: MED-THKPavilion 38.8°Culet: NoneDepth 59.6%

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 2
Current: £6,309 GBP|Low: £1,841 GBP|High: £6,309 GBP|Avg: £2,720 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 3, 2026
Retailer 3£1,843 GBP
Retailer 7£1,992 GBP
Retailer 5£2,109 GBP
Retailer 10£2,169 GBP
Retailer 12£2,230 GBP
Retailer 6£2,315 GBP
Retailer 9£2,355 GBP
Retailer 4£2,498 GBP
Retailer 11£2,812 GBP
Retailer 18£3,158 GBP
Retailer 20£3,262 GBP
Retailer 19£3,343 GBP
Retailer 8£3,402 GBP
Retailer 14£3,508 GBP
Retailer 2£3,621 GBP
Retailer 15£3,621 GBP
Retailer 17£3,734 GBP
Retailer 13£4,178 GBP
Retailer 16£5,767 GBP
NZ Jewellers£6,309 GBP

21 data points across 20 retailers

16 retailers£2,230 GBP to £6,309 GBP

Retailer 1
-
£2,169 GBP
SGD 3,934 SGD
Price last confirmed 29 days ago
A
Retailer 2
-
£2,230 GBP
$2,993 USD
View
Retailer 3
-
£2,315 GBP
$3,106 USD
View
Price last confirmed 28 days ago
Retailer 4
-
£2,355 GBP
$3,160 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£3,158 GBP
$4,238 USD
View
A
Retailer 6
-
£3,262 GBP
$4,378 USD
View
Retailer 7
-
£3,262 GBP
$4,378 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
£3,343 GBP
$4,486 USD
View
Final sale: no returns
Retailer 9
-
£3,402 GBP
$4,565 USD
View
Price last confirmed 31 days ago
A
Retailer 10
-
£3,508 GBP
View
B+
Retailer 11
-
£3,621 GBP
$4,859 USD
View
B+
Retailer 12
-
£3,621 GBP
$4,859 USD
View
B+
Retailer 13
-
£3,734 GBP
$5,010 USD
View
B+
Retailer 14
-
£4,178 GBP
$5,607 USD
View
B
Retailer 15
-
£5,767 GBP
View
Most Expensive
B
NZ Jewellers
bc587d9e-cdd3-49ad-96fe-358d28ec1db7 · Nov 3
£6,309 GBP
$8,466 USD
View
15 more retailers have this diamond
Prices start from £2,230 GBPSave up to £4,078 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
£2,230 GBP