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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 1547166148

Certificate GIA 1547166148

Diamond specifications and retailer prices

From £1,626 GBP
$2,178 USD
As of November 2, 2026
Save £2,664 GBP (62%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £4,290 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1547166148. Listed at 26 retailers as of October 30, 2026, with prices from £1,626 to £4,290, a £2,664 spread on the same certified stone. NZ Jewellers lists it at £4,290. 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

1.00
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1547166148
Dimensions6.39 × 6.99 × 3.90 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
6.39 mm6.99 mm1.00 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1547166148
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 55.9%

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: Nov 2
Current: £2,001 GBP|Low: £1,626 GBP|High: £3,638 GBP|Avg: £2,253 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9£1,626 GBP
Retailer 10£1,679 GBP
Retailer 7£1,847 GBP
Retailer 2£1,945 GBP
Retailer 1£2,001 GBP
Retailer 4£2,193 GBP
Retailer 8£2,299 GBP
Retailer 3£2,401 GBP
Retailer 6£2,522 GBP
Retailer 5£3,595 GBP

36 data points across 10 retailers

26 retailers£1,626 GBP to £4,290 GBP

B+
Cheapest Retailer
-
£1,626 GBP
$2,178 USD
Final sale: no returns
B+
Retailer 2
-
£1,626 GBP
$2,179 USD
View
B
Retailer 3
-
£1,671 GBP
$2,239 USD
View
B
Retailer 4
-
£1,679 GBP
$2,250 USD
View
B
Retailer 5
-
£1,753 GBP
$2,349 USD
View
B
Retailer 6
-
£1,793 GBP
$2,403 USD
View
B+
Retailer 7
-
£1,847 GBP
$2,475 USD
View
B
Retailer 8
-
£1,859 GBP
$2,491 USD
View
B
Retailer 9
-
£1,859 GBP
$2,491 USD
View
B
Retailer 10
-
£1,891 GBP
$2,534 USD
View
B
Retailer 11
-
£1,945 GBP
$2,606 USD
View
B
Retailer 12
-
£2,001 GBP
View
B
Retailer 13
-
£2,015 GBP
$2,700 USD
View
B
Retailer 14
-
£2,023 GBP
$2,710 USD
View
B
Retailer 15
-
£2,031 GBP
CA$3,780 CAD
View
B
Retailer 16
-
£2,135 GBP
$2,860 USD
View
B
Retailer 17
-
£2,135 GBP
$2,860 USD
View
B
Retailer 18
-
£2,145 GBP
$2,874 USD
View
B
Retailer 19
-
£2,193 GBP
View
B
Retailer 20
-
£2,202 GBP
$2,950 USD
View
Retailer 21
-
£2,299 GBP
A$4,739 AUD
View
Price last confirmed 25 days ago
B
Retailer 22
-
£2,401 GBP
€3,064 EUR
View
B
Retailer 23
-
£2,485 GBP
$3,330 USD
View
B
Retailer 24
-
£2,522 GBP
ZAR 54,594 ZAR
View
B
Retailer 25
-
£3,595 GBP
View
Most Expensive
C
NZ Jewellers
cc1947b4-04d1-4415-8b61-edad2f0691d5 · Oct 30
£4,290 GBP
$5,748 USD
View
25 more retailers have this diamond
Prices start from £1,626 GBPSave up to £2,664 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+
1.00ct Heart
£1,626 GBP