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Heart|Natural|GIA

1.05ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 6551516191

Certificate GIA 6551516191

Diamond specifications and retailer prices

From £1,084 GBP
As of November 6, 2026
Save £425 GBP (28%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,509 GBP at GemTrove · As of November 7, 2026
View at GemTrove

About this 1.05ct natural heart diamond

This 1.05ct natural heart sits in the classic one-carat band, graded G 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 6551516191. Listed at 6 retailers as of November 6, 2026, with prices from £1,084 to £1,509, a £425 spread on the same certified stone. GemTrove lists it at £1,509. 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

1.05
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551516191
Dimensions6.23 × 7.21 × 4.08 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle, Natural
Top View
6.23 mm7.21 mm1.05 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551516191
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.6%

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 6
Current: £1,509 GBP|Low: £1,015 GBP|High: £1,509 GBP|Avg: £1,240 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4£1,084 GBP
Retailer 3£1,090 GBP
Retailer 5£1,100 GBP
Retailer 2£1,182 GBP
Retailer 6£1,233 GBP
GemTrove£1,509 GBP

41 data points across 6 retailers

6 retailers£1,084 GBP to £1,509 GBP

A
Cheapest Retailer
-
£1,084 GBP
Final sale: no returns
A
Retailer 2
-
£1,090 GBP
View
A
Retailer 3
-
£1,100 GBP
View
A
Retailer 4
-
£1,182 GBP
View
A
Retailer 5
-
£1,233 GBP
View
Most Expensive
B+
GemTrove
GT-N-01268754-98 · Nov 7
£1,509 GBP
A$3,108 AUD
View
5 more retailers have this diamond
Prices start from £1,084 GBPSave up to £425 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
1.05ct Heart
£1,084 GBP