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Heart|Natural|GIA

1.00ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1518446426

Certificate GIA 1518446426

Diamond specifications and retailer prices

From £1,103 GBP
As of November 4, 2026
Save £624 GBP (36%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,728 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518446426. Listed at 7 retailers as of November 4, 2026, with prices from £1,103 to £1,728, a £624 spread on the same certified stone. GemTrove lists it at £1,728. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1518446426
Dimensions6.95 × 5.88 × 3.52 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
6.95 mm5.88 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518446426
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.8%

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 4
Current: £1,728 GBP|Low: £1,009 GBP|High: £1,728 GBP|Avg: £1,346 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£1,103 GBP
Retailer 2£1,112 GBP
Retailer 6£1,217 GBP
Retailer 4£1,227 GBP
Retailer 3£1,332 GBP
Retailer 7£1,389 GBP
GemTrove£1,728 GBP

41 data points across 7 retailers

7 retailers£1,103 GBP to £1,728 GBP

A
Cheapest Retailer
-
£1,103 GBP
Final sale: no returns
A
Retailer 2
-
£1,112 GBP
View
A
Retailer 3
-
£1,217 GBP
View
A
Retailer 4
-
£1,227 GBP
View
A
Retailer 5
-
£1,332 GBP
View
A
Retailer 6
-
£1,389 GBP
View
Most Expensive
B+
GemTrove
GT-N-01267136-98 · Nov 6
£1,728 GBP
A$3,558 AUD
View
6 more retailers have this diamond
Prices start from £1,103 GBPSave up to £624 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
£1,103 GBP