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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 7538863920

Certificate GIA 7538863920

Diamond specifications and retailer prices

From £1,561 GBP
$2,091 USD
As of November 2, 2026
Save £2,559 GBP (62%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £4,120 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 7538863920. Listed at 25 retailers as of October 30, 2026, with prices from £1,561 to £4,120, a £2,559 spread on the same certified stone. NZ Jewellers lists it at £4,120. 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 7538863920
Dimensions6.34 × 6.93 × 3.93 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Natural
Top View
6.34 mm6.93 mm1.00 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7538863920
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 56.8%

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: £1,922 GBP|Low: £1,561 GBP|High: £3,495 GBP|Avg: £2,145 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10£1,561 GBP
Retailer 3£1,567 GBP
Retailer 8£1,723 GBP
Retailer 11£1,868 GBP
Retailer 1£1,922 GBP
Retailer 2£1,946 GBP
Retailer 5£2,106 GBP
Retailer 9£2,208 GBP
Retailer 7£2,422 GBP
Retailer 4£2,460 GBP
Retailer 6£3,453 GBP

41 data points across 11 retailers

25 retailers£1,561 GBP to £4,120 GBP

B+
Cheapest Retailer
-
£1,561 GBP
$2,091 USD
Final sale: no returns
B+
Retailer 2
-
£1,567 GBP
$2,100 USD
View
B
Retailer 3
-
£1,605 GBP
$2,150 USD
View
B
Retailer 4
-
£1,683 GBP
$2,255 USD
View
B
Retailer 5
-
£1,723 GBP
$2,308 USD
View
B
Retailer 6
-
£1,780 GBP
$2,385 USD
View
B
Retailer 7
-
£1,785 GBP
$2,392 USD
View
B
Retailer 8
-
£1,785 GBP
$2,392 USD
View
B
Retailer 9
-
£1,821 GBP
$2,439 USD
View
B
Retailer 10
-
£1,868 GBP
$2,503 USD
View
B
Retailer 11
-
£1,922 GBP
View
B
Retailer 12
-
£1,934 GBP
$2,592 USD
View
B
Retailer 13
-
£1,946 GBP
$2,608 USD
View
B
Retailer 14
-
£1,950 GBP
CA$3,629 CAD
View
B
Retailer 15
-
£2,052 GBP
$2,750 USD
View
B
Retailer 16
-
£2,052 GBP
$2,750 USD
View
B
Retailer 17
-
£2,060 GBP
$2,760 USD
View
B
Retailer 18
-
£2,106 GBP
View
B
Retailer 19
-
£2,120 GBP
$2,840 USD
View
Retailer 20
-
£2,208 GBP
A$4,552 AUD
View
Price last confirmed 25 days ago
B
Retailer 21
-
£2,386 GBP
$3,197 USD
View
B
Retailer 22
-
£2,422 GBP
ZAR 52,434 ZAR
View
B
Retailer 23
-
£2,460 GBP
€3,139 EUR
View
B
Retailer 24
-
£3,453 GBP
View
Most Expensive
C
NZ Jewellers
8128193f-ff2f-4e41-88bb-f309694d102b · Oct 30
£4,120 GBP
$5,520 USD
View
24 more retailers have this diamond
Prices start from £1,561 GBPSave up to £2,559 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
£1,561 GBP