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Heart|Natural|GIA

1.00ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2547731109

Certificate GIA 2547731109

Diamond specifications and retailer prices

From £808 GBP
As of November 4, 2026
Save £540 GBP (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,348 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547731109. Listed at 10 retailers as of November 4, 2026, with prices from £808 to £1,348, a £540 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,348. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.8°
Pavilion angle38.05°
OriginNatural
Grading LabGIA
CertificateGIA 2547731109
Dimensions5.90 × 6.94 × 4.06 mm
L/W Ratio1.18
Top View
5.90 mm6.94 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547731109
Side View
Table 58.0%Crown 36.8°Girdle: MED-THKPavilion 38.05°Culet: NoneDepth 58.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £911 GBP|Low: £808 GBP|High: £1,386 GBP|Avg: £976 GBP|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 3£808 GBP
Retailer 8£859 GBP
Retailer 7£870 GBP
Retailer 4£874 GBP
Retailer 6£880 GBP
Retailer 1£911 GBP
Retailer 5£995 GBP
Retailer 9£1,006 GBP
Retailer 2£1,015 GBP
Wholesale Diamonds Direct£1,348 GBP

39 data points across 10 retailers

10 retailers£808 GBP to £1,348 GBP

A
Cheapest Retailer
-
£808 GBP
A
Retailer 2
-
£859 GBP
View
A
Retailer 3
-
£870 GBP
View
A
Retailer 4
-
£874 GBP
View
A
Retailer 5
-
£880 GBP
View
A
Retailer 6
-
£911 GBP
View
A
Retailer 7
-
£995 GBP
View
A
Retailer 8
-
£1,006 GBP
View
A
Retailer 9
-
£1,015 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
488122460 · Nov 6
£1,348 GBP
$1,804 USD
View
9 more retailers have this diamond
Prices start from £808 GBPSave up to £540 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
£808 GBP