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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 3515479566

Certificate GIA 3515479566

Diamond specifications and retailer prices

From £3,945 GBP
$5,253 USD
As of October 28, 2026
Save £3,619 GBP (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £7,564 GBP at NZ Jewellers · As of October 27, 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3515479566. Listed at 12 retailers as of October 27, 2026, with prices from £3,945 to £7,564, a £3,619 spread on the same certified stone. NZ Jewellers lists it at £7,564. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 3515479566
Dimensions6.76 × 7.92 × 4.42 mm
L/W Ratio1.17
Top View
6.76 mm7.92 mm1.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 3515479566
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.8%

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 28
Current: £7,564 GBP|Low: £3,945 GBP|High: £9,446 GBP|Avg: £5,474 GBP|-19.9%
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
October 30, 2026
Retailer 3£3,945 GBP
Retailer 13£4,012 GBP
Retailer 12£4,174 GBP
Retailer 11£4,216 GBP
Retailer 2£4,244 GBP
Retailer 4£4,471 GBP
Retailer 8£4,523 GBP
Retailer 10£4,523 GBP
Retailer 5£5,213 GBP
Retailer 9£5,218 GBP
Retailer 7£5,507 GBP
Retailer 6£6,699 GBP
NZ Jewellers£7,564 GBP

42 data points across 13 retailers

12 retailers£3,945 GBP to £7,564 GBP

A
Cheapest Retailer
-
£3,945 GBP
$5,253 USD
A
Retailer 2
-
£4,012 GBP
$5,343 USD
View
A
Retailer 3
-
£4,174 GBP
$5,558 USD
View
Final sale: no returns
B+
Retailer 4
-
£4,216 GBP
$5,615 USD
View
B+
Retailer 5
-
£4,244 GBP
View
Retailer 6
-
£4,471 GBP
A$9,160 AUD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
£4,523 GBP
$6,023 USD
View
B+
Retailer 8
-
£4,523 GBP
$6,023 USD
View
B+
Retailer 9
-
£5,218 GBP
$6,949 USD
View
B
Retailer 10
-
£5,507 GBP
ZAR 118,481 ZAR
View
B
Retailer 11
-
£6,699 GBP
View
Most Expensive
B
NZ Jewellers
962f1555-ae7f-4ac4-8bb1-d5db45c8ff82 · Oct 27
£7,564 GBP
$10,073 USD
View
11 more retailers have this diamond
Prices start from £3,945 GBPSave up to £3,619 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
£3,945 GBP