Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 7235137535

Certificate GIA 7235137535

Diamond specifications and retailer prices

From £3,214 GBP
$4,306 USD
As of October 30, 2026
Save £3,864 GBP (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £7,078 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 7235137535. Listed at 12 retailers as of October 30, 2026, with prices from £3,214 to £7,078, a £3,864 spread on the same certified stone. NZ Jewellers lists it at £7,078. 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
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7235137535
Dimensions7.92 × 6.71 × 4.80 mm
L/W Ratio1.18
Top View
7.92 mm6.71 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7235137535
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £7,078 GBP|Low: £2,921 GBP|High: £7,078 GBP|Avg: £4,303 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
November 1, 2026
Retailer 15£3,214 GBP
Retailer 3£3,306 GBP
Retailer 14£3,505 GBP
Retailer 6£3,667 GBP
Retailer 5£3,776 GBP
Retailer 9£3,834 GBP
Retailer 10£3,834 GBP
Retailer 11£3,834 GBP
Retailer 2£3,960 GBP
Retailer 4£4,028 GBP
Retailer 13£4,423 GBP
Retailer 7£4,601 GBP
Retailer 8£5,202 GBP
Retailer 12£6,776 GBP
NZ Jewellers£7,078 GBP

43 data points across 15 retailers

12 retailers£3,214 GBP to £7,078 GBP

A
Cheapest Retailer
-
£3,214 GBP
$4,306 USD
A
Retailer 2
-
£3,306 GBP
$4,430 USD
View
A
Retailer 3
-
£3,505 GBP
$4,696 USD
View
Final sale: no returns
A
Retailer 4
-
£3,776 GBP
$5,060 USD
View
A
Retailer 5
-
£3,834 GBP
$5,137 USD
View
A
Retailer 6
-
£3,834 GBP
$5,137 USD
View
A
Retailer 7
-
£3,960 GBP
View
B+
Retailer 8
-
£4,028 GBP
$5,397 USD
View
B+
Retailer 9
-
£4,423 GBP
$5,927 USD
View
B+
Retailer 10
-
£5,202 GBP
ZAR 112,600 ZAR
View
B
Retailer 11
-
£6,776 GBP
View
Most Expensive
B
NZ Jewellers
1a43fbe1-e9f2-4ee4-97ce-71e52b69b7f0 · Oct 30
£7,078 GBP
$9,484 USD
View
11 more retailers have this diamond
Prices start from £3,214 GBPSave up to £3,864 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
£3,214 GBP