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Heart|Natural|GIA

1.00ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 2548591552

Certificate GIA 2548591552

Diamond specifications and retailer prices

From £982 GBP
As of November 6, 2026
Save £1,278 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,157 GBP at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2548591552. Listed at 12 retailers as of November 4, 2026, with a 130% 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2548591552
Dimensions6.33 × 6.95 × 3.83 mm
L/W Ratio1.10
Top View
6.33 mm6.95 mm1.00 ctD / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2548591552
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 55.1%

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: £982 GBP|Low: £982 GBP|High: £2,426 GBP|Avg: £1,471 GBP|-8.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1£982 GBP
Retailer 11£1,040 GBP
Retailer 9£1,179 GBP
Retailer 2£1,267 GBP
Retailer 8£1,345 GBP
Retailer 10£1,396 GBP
Retailer 6£1,436 GBP
Retailer 5£1,579 GBP
Retailer 4£1,758 GBP
Retailer 3£1,827 GBP
Retailer 7£2,261 GBP

35 data points across 11 retailers

12 retailers£982 GBP to £2,261 GBP

A
Cheapest Retailer
-
£982 GBP
A
Retailer 2
-
£1,040 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,179 GBP
View
A
Retailer 4
-
£1,267 GBP
View
A
Retailer 5
-
£1,345 GBP
View
A
Retailer 6
-
£1,396 GBP
View
A
Retailer 7
-
£1,436 GBP
View
A
Retailer 8
-
£1,579 GBP
View
B+
Retailer 9
-
£1,758 GBP
View
Retailer 10
-
£1,827 GBP
View
Price last confirmed 33 days ago
B+
Retailer 11
-
£2,261 GBP
View
Most Expensive
NZ Jewellers
f64c6e6d-97d2-4395-a8ba-34271c0f2f9c · Oct 11
£3,157 GBP
$4,225 USD
View
Price last confirmed 26 days ago
11 more retailers have this diamond
Prices start from £982 GBPSave up to £1,278 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
£982 GBP