Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 6442699747

Certificate GIA 6442699747

Diamond specifications and retailer prices

From £5,510 GBP
$7,383 USD
As of October 31, 2026
Save £5,224 GBP (49%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £10,734 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 6442699747. Listed at 22 retailers as of October 30, 2026, with prices from £5,510 to £10,734, a £5,224 spread on the same certified stone. NZ Jewellers lists it at £10,734. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6442699747
Dimensions7.63 × 7.22 × 4.35 mm
L/W Ratio1.06
Top View
7.63 mm7.22 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6442699747
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £10,058 GBP|Low: £5,618 GBP|High: £10,180 GBP|Avg: £7,516 GBP|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8£5,618 GBP
Retailer 6£6,440 GBP
Retailer 2£7,041 GBP
Retailer 5£7,074 GBP
Retailer 7£7,085 GBP
Retailer 9£7,178 GBP
Retailer 4£8,116 GBP
Retailer 3£9,462 GBP
Retailer 1£10,058 GBP

45 data points across 9 retailers

22 retailers£5,510 GBP to £10,734 GBP

B+
Cheapest Retailer
-
£5,510 GBP
$7,383 USD
B+
Retailer 2
-
£5,618 GBP
$7,527 USD
View
B
Retailer 3
-
£6,000 GBP
$8,039 USD
View
B
Retailer 4
-
£6,030 GBP
$8,080 USD
View
B+
Retailer 5
-
£6,396 GBP
$8,570 USD
View
B
Retailer 6
-
£6,440 GBP
$8,629 USD
View
Final sale: no returns
B+
Retailer 7
-
£6,441 GBP
$8,630 USD
View
B
Retailer 8
-
£6,866 GBP
$9,200 USD
View
B
Retailer 9
-
£6,977 GBP
$9,349 USD
View
B
Retailer 10
-
£7,041 GBP
View
Retailer 11
-
£7,074 GBP
A$14,581 AUD
View
Price last confirmed 8 days ago
B
Retailer 12
-
£7,085 GBP
$9,493 USD
View
B
Retailer 13
-
£7,178 GBP
$9,618 USD
View
B
Retailer 14
-
£7,613 GBP
$10,200 USD
View
B
Retailer 15
-
£7,613 GBP
$10,200 USD
View
B
Retailer 16
-
£7,866 GBP
$10,540 USD
View
B
Retailer 17
-
£8,051 GBP
$10,787 USD
View
B
Retailer 18
-
£8,116 GBP
€10,357 EUR
View
Retailer 19
-
£8,478 GBP
$11,359 USD
View
Price last confirmed 9 days ago
B
Retailer 20
-
£9,462 GBP
ZAR 204,814 ZAR
View
B
Retailer 21
-
£10,058 GBP
View
Most Expensive
B
NZ Jewellers
8ff8dbb9-1d82-4301-8e57-2c050b390974 · Oct 30
£10,734 GBP
$14,383 USD
View
21 more retailers have this diamond
Prices start from £5,510 GBPSave up to £5,224 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.

B+
1.51ct Heart
£5,510 GBP