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Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 3545312513

Certificate GIA 3545312513

Diamond specifications and retailer prices

From £3,526 GBP
₹449,971 INR
As of October 30, 2026
Save £4,239 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £7,766 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3545312513. Listed at 19 retailers as of October 30, 2026, with prices from £3,526 to £7,766, a £4,239 spread on the same certified stone. NZ Jewellers lists it at £7,766. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545312513
Dimensions6.69 × 7.71 × 4.67 mm
L/W Ratio1.15
Top View
6.69 mm7.71 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3545312513
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.5%

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: £7,766 GBP|Low: £3,453 GBP|High: £7,766 GBP|Avg: £4,652 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
October 31, 2026
Retailer 13£3,526 GBP
Retailer 15£3,667 GBP
Retailer 8£3,699 GBP
Retailer 7£4,049 GBP
Retailer 5£4,185 GBP
Retailer 10£4,231 GBP
Retailer 3£4,321 GBP
Retailer 14£4,357 GBP
Retailer 12£4,454 GBP
Retailer 11£4,545 GBP
Retailer 9£4,643 GBP
Retailer 18£4,643 GBP
Retailer 19£4,643 GBP
Retailer 4£4,760 GBP
Retailer 6£4,836 GBP
Retailer 17£5,357 GBP
Retailer 2£5,707 GBP
Retailer 16£6,877 GBP
NZ Jewellers£7,766 GBP

29 data points across 19 retailers

19 retailers£3,526 GBP to £7,766 GBP

A
Cheapest Retailer
-
£3,526 GBP
₹449,971 INR
A
Retailer 2
-
£3,667 GBP
$4,914 USD
View
A
Retailer 3
-
£3,699 GBP
$4,956 USD
View
Final sale: no returns
A
Retailer 4
-
£4,049 GBP
$5,425 USD
View
A
Retailer 5
-
£4,185 GBP
$5,607 USD
View
A
Retailer 6
-
£4,231 GBP
$5,669 USD
View
B+
Retailer 7
-
£4,321 GBP
$5,790 USD
View
A
Retailer 8
-
£4,357 GBP
View
B+
Retailer 9
-
£4,454 GBP
View
Retailer 10
-
£4,545 GBP
A$9,370 AUD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
£4,643 GBP
$6,221 USD
View
B+
Retailer 12
-
£4,643 GBP
$6,221 USD
View
B+
Retailer 13
-
£4,643 GBP
$6,221 USD
View
B+
Retailer 14
-
£4,760 GBP
$6,378 USD
View
B+
Retailer 15
-
£4,836 GBP
$6,480 USD
View
B+
Retailer 16
-
£5,357 GBP
$7,178 USD
View
B
Retailer 17
-
£5,707 GBP
ZAR 123,538 ZAR
View
B
Retailer 18
-
£6,877 GBP
View
Most Expensive
B
NZ Jewellers
99cd868e-270a-4f5d-8717-9b2449db13b6 · Oct 30
£7,766 GBP
$10,405 USD
View
18 more retailers have this diamond
Prices start from £3,526 GBPSave up to £4,239 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
£3,526 GBP