CaratHunter
Plans
Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

ID • G/SI2 • GIA 2558589233

Certificate GIA 2558589233

Diamond specifications and retailer prices

From £2,486 GBP
$3,336 USD
As of October 30, 2026
Save £3,461 GBP (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,947 GBP at NZ Jewellers · As of October 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 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 2558589233. Listed at 15 retailers as of October 30, 2026, with prices from £2,486 to £5,947, a £3,461 spread on the same certified stone. NZ Jewellers lists it at £5,947. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558589233
Dimensions7.86 × 6.72 × 4.82 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle
Top View
7.86 mm6.72 mm1.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558589233
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 61.3%

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: Oct 30
Current: £5,947 GBP|Low: £2,356 GBP|High: £5,947 GBP|Avg: £3,548 GBP|+1.0%
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
November 2, 2026
Retailer 9£2,486 GBP
Retailer 7£2,612 GBP
Retailer 6£2,827 GBP
Retailer 14£3,093 GBP
Retailer 15£3,093 GBP
Retailer 16£3,093 GBP
Retailer 8£3,130 GBP
Retailer 17£3,283 GBP
Retailer 2£3,307 GBP
Retailer 3£3,487 GBP
Retailer 4£3,487 GBP
Retailer 13£3,569 GBP
Retailer 5£3,599 GBP
Retailer 10£3,792 GBP
Retailer 18£3,861 GBP
Retailer 11£3,862 GBP
Retailer 12£5,437 GBP
NZ Jewellers£5,947 GBP

30 data points across 18 retailers

15 retailers£2,486 GBP to £5,947 GBP

A
Cheapest Retailer
-
£2,486 GBP
$3,336 USD
A
Retailer 2
-
£2,612 GBP
$3,505 USD
View
A
Retailer 3
-
£3,093 GBP
$4,150 USD
View
A
Retailer 4
-
£3,093 GBP
$4,150 USD
View
A
Retailer 5
-
£3,130 GBP
$4,200 USD
View
A
Retailer 6
-
£3,283 GBP
$4,405 USD
View
A
Retailer 7
-
£3,307 GBP
View
A
Retailer 8
-
£3,475 GBP
$4,663 USD
View
A
Retailer 9
-
£3,487 GBP
$4,680 USD
View
A
Retailer 10
-
£3,487 GBP
$4,680 USD
View
B+
Retailer 11
-
£3,569 GBP
$4,789 USD
View
B+
Retailer 12
-
£3,599 GBP
$4,830 USD
View
B+
Retailer 13
-
£3,862 GBP
€4,936 EUR
View
B+
Retailer 14
-
£5,437 GBP
View
Most Expensive
B
NZ Jewellers
0de007c3-c249-4d1f-b0b4-5b34d64af8d8 · Oct 30
£5,947 GBP
$7,981 USD
View
14 more retailers have this diamond
Prices start from £2,486 GBPSave up to £3,461 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
£2,486 GBP