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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2546010111

Certificate GIA 2546010111

Diamond specifications and retailer prices

From £1,069 GBP
$1,433 USD
As of November 2, 2026
Save £1,757 GBP (62%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,826 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546010111. Listed at 16 retailers as of October 30, 2026, with prices from £1,069 to £2,826, a £1,757 spread on the same certified stone. NZ Jewellers lists it at £2,826. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.78°
Pavilion angle38.79°
OriginNatural
Grading LabGIA
CertificateGIA 2546010111
Dimensions6.06 × 6.87 × 3.96 mm
L/W Ratio1.13
Top View
6.06 mm6.87 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546010111
Side View
Table 56.0%Crown 37.78°Girdle: THK-VTKPavilion 38.79°Culet: NoneDepth 57.6%

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: Nov 2
Current: £2,826 GBP|Low: £980 GBP|High: £2,826 GBP|Avg: £1,388 GBP
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 2, 2026
Retailer 14£1,069 GBP
Retailer 4£1,074 GBP
Retailer 13£1,075 GBP
Retailer 11£1,126 GBP
Retailer 2£1,130 GBP
Retailer 3£1,158 GBP
Retailer 5£1,158 GBP
Retailer 12£1,212 GBP
Retailer 15£1,280 GBP
Retailer 8£1,298 GBP
Retailer 6£1,337 GBP
Retailer 10£1,414 GBP
Retailer 7£1,565 GBP
Retailer 9£2,030 GBP
NZ Jewellers£2,826 GBP

34 data points across 15 retailers

16 retailers£1,069 GBP to £2,826 GBP

A
Cheapest Retailer
-
£1,069 GBP
$1,433 USD
Final sale: no returns
A
Retailer 2
-
£1,074 GBP
$1,439 USD
View
A
Retailer 3
-
£1,075 GBP
$1,440 USD
View
A
Retailer 4
-
£1,126 GBP
$1,509 USD
View
A
Retailer 5
-
£1,130 GBP
View
A
Retailer 6
-
£1,158 GBP
$1,552 USD
View
A
Retailer 7
-
£1,158 GBP
$1,552 USD
View
A
Retailer 8
-
£1,212 GBP
$1,624 USD
View
A
Retailer 9
-
£1,280 GBP
$1,715 USD
View
A
Retailer 10
-
£1,298 GBP
View
B+
Retailer 11
-
£1,337 GBP
$1,791 USD
View
Retailer 12
-
£1,365 GBP
View
Price last confirmed 36 days ago
B+
Retailer 13
-
£1,414 GBP
ZAR 30,614 ZAR
View
Retailer 14
-
£1,565 GBP
A$3,226 AUD
View
Price last confirmed 27 days ago
B+
Retailer 15
-
£2,030 GBP
View
Most Expensive
B
NZ Jewellers
0c9d224c-bc33-4999-bb6f-ec63abb3d2eb · Oct 30
£2,826 GBP
$3,787 USD
View
15 more retailers have this diamond
Prices start from £1,069 GBPSave up to £1,757 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
1.00ct Heart
£1,069 GBP