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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6541171833

Certificate GIA 6541171833

Diamond specifications and retailer prices

From £792 GBP
As of November 6, 2026
Save £436 GBP (35%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,228 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 6541171833. Listed at 6 retailers as of November 6, 2026, with prices from £792 to £1,228, a £436 spread on the same certified stone. GemTrove lists it at £1,228. 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 6541171833
Dimensions6.30 × 7.11 × 3.96 mm
L/W Ratio1.13
Top View
6.30 mm7.11 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541171833
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 55.8%

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 6
Current: £1,228 GBP|Low: £769 GBP|High: £1,228 GBP|Avg: £950 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3£792 GBP
Retailer 5£793 GBP
Retailer 4£826 GBP
Retailer 2£874 GBP
Retailer 6£900 GBP
GemTrove£1,228 GBP

42 data points across 6 retailers

6 retailers£792 GBP to £1,228 GBP

A
Cheapest Retailer
-
£792 GBP
A
Retailer 2
-
£793 GBP
View
Final sale: no returns
A
Retailer 3
-
£826 GBP
View
A
Retailer 4
-
£874 GBP
View
A
Retailer 5
-
£900 GBP
View
Most Expensive
B+
GemTrove
GT-N-01267370-98 · Nov 6
£1,228 GBP
A$2,528 AUD
View
5 more retailers have this diamond
Prices start from £792 GBPSave up to £436 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
£792 GBP