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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 1548496903

Certificate GIA 1548496903

Diamond specifications and retailer prices

From £952 GBP
As of November 6, 2026
Save £1,335 GBP (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,163 GBP at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

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 1548496903. Listed at 14 retailers as of November 4, 2026, with a 140% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548496903
Dimensions6.90 × 6.20 × 4.05 mm
L/W Ratio1.11
Top View
6.90 mm6.20 mm1.00 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548496903
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 58.7%

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: £1,287 GBP|Low: £903 GBP|High: £2,306 GBP|Avg: £1,370 GBP|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 14£952 GBP
Retailer 11£1,044 GBP
Retailer 9£1,084 GBP
Retailer 12£1,174 GBP
Retailer 13£1,218 GBP
Retailer 10£1,229 GBP
Retailer 1£1,287 GBP
Retailer 3£1,355 GBP
Retailer 4£1,397 GBP
Retailer 5£1,397 GBP
Retailer 2£1,442 GBP
Retailer 6£1,585 GBP
Retailer 7£1,778 GBP
Retailer 8£2,287 GBP

45 data points across 14 retailers

14 retailers£952 GBP to £2,287 GBP

A
Cheapest Retailer
-
£952 GBP
A
Retailer 2
-
£1,044 GBP
View
A
Retailer 3
-
£1,084 GBP
View
Final sale: no returns
Retailer 4
-
£1,174 GBP
View
Price last confirmed 15 days ago
A
Retailer 5
-
£1,218 GBP
View
Retailer 6
-
£1,229 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
£1,287 GBP
View
Retailer 8
-
£1,355 GBP
View
Price last confirmed 14 days ago
B+
Retailer 9
-
£1,397 GBP
View
B+
Retailer 10
-
£1,397 GBP
View
B+
Retailer 11
-
£1,442 GBP
View
B
Retailer 12
-
£1,778 GBP
View
B
Retailer 13
-
£2,287 GBP
View
Most Expensive
NZ Jewellers
a00bb8ec-bc67-4bba-aaea-e60f044af3d5 · Oct 21
£3,163 GBP
$4,233 USD
View
Price last confirmed 16 days ago
13 more retailers have this diamond
Prices start from £952 GBPSave up to £1,335 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
£952 GBP