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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 7551106580

Certificate GIA 7551106580

Diamond specifications and retailer prices

From £843 GBP
As of November 4, 2026
Save £423 GBP (33%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,267 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551106580. Listed at 6 retailers as of November 6, 2026, with prices from £843 to £1,267, a £423 spread on the same certified stone. GemTrove lists it at £1,267. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551106580
Dimensions6.41 × 6.99 × 4.00 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
6.41 mm6.99 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551106580
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.3%

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 4
Current: £1,267 GBP|Low: £811 GBP|High: £1,267 GBP|Avg: £998 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3£843 GBP
Retailer 4£843 GBP
Retailer 5£880 GBP
Retailer 2£931 GBP
Retailer 6£956 GBP
GemTrove£1,267 GBP

42 data points across 6 retailers

6 retailers£843 GBP to £1,267 GBP

A
Cheapest Retailer
-
£843 GBP
Final sale: no returns
A
Retailer 2
-
£843 GBP
View
A
Retailer 3
-
£880 GBP
View
A
Retailer 4
-
£931 GBP
View
A
Retailer 5
-
£956 GBP
View
Most Expensive
B+
GemTrove
GT-N-01267488-98 · Nov 6
£1,267 GBP
A$2,608 AUD
View
5 more retailers have this diamond
Prices start from £843 GBPSave up to £423 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
£843 GBP