Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 1455697916

Certificate GIA 1455697916

Diamond specifications and retailer prices

From £3,106 GBP
$4,162 USD
As of October 30, 2026
Save £3,736 GBP (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,842 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 1455697916. Listed at 12 retailers as of October 30, 2026, with prices from £3,106 to £6,842, a £3,736 spread on the same certified stone. NZ Jewellers lists it at £6,842. 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
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1455697916
Dimensions7.74 × 6.71 × 4.80 mm
L/W Ratio1.15
Top View
7.74 mm6.71 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1455697916
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.0%

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: £6,842 GBP|Low: £2,823 GBP|High: £6,842 GBP|Avg: £4,148 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
November 1, 2026
Retailer 9£2,901 GBP
Retailer 6£2,932 GBP
Retailer 3£3,106 GBP
Retailer 4£3,197 GBP
Retailer 16£3,388 GBP
Retailer 5£3,664 GBP
Retailer 12£3,706 GBP
Retailer 13£3,706 GBP
Retailer 14£3,706 GBP
Retailer 2£3,828 GBP
Retailer 17£3,900 GBP
Retailer 15£4,276 GBP
Retailer 7£4,433 GBP
Retailer 11£5,029 GBP
Retailer 8£5,754 GBP
Retailer 10£6,516 GBP
NZ Jewellers£6,842 GBP

28 data points across 17 retailers

12 retailers£3,106 GBP to £6,842 GBP

A
Cheapest Retailer
-
£3,106 GBP
$4,162 USD
A
Retailer 2
-
£3,197 GBP
$4,284 USD
View
A
Retailer 3
-
£3,388 GBP
$4,540 USD
View
Final sale: no returns
A
Retailer 4
-
£3,664 GBP
$4,910 USD
View
A
Retailer 5
-
£3,706 GBP
$4,966 USD
View
A
Retailer 6
-
£3,706 GBP
$4,966 USD
View
A
Retailer 7
-
£3,828 GBP
View
A
Retailer 8
-
£3,900 GBP
$5,226 USD
View
B+
Retailer 9
-
£4,276 GBP
$5,730 USD
View
B+
Retailer 10
-
£5,029 GBP
ZAR 108,856 ZAR
View
B
Retailer 11
-
£6,516 GBP
View
Most Expensive
B
NZ Jewellers
37560a22-5da5-452b-8057-d2a5406fbd8e · Oct 30
£6,842 GBP
$9,168 USD
View
11 more retailers have this diamond
Prices start from £3,106 GBPSave up to £3,736 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
£3,106 GBP