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Heart|Natural|GIA

3.00ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 2557266987

Certificate GIA 2557266987

Diamond specifications and retailer prices

From £13,882 GBP
As of November 3, 2026
Save £7,431 GBP (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £21,313 GBP at Diamonds Direct · As of November 3, 2026
View at Diamonds Direct

About this 3ct natural heart diamond

This 3ct natural heart sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557266987. Listed at 11 retailers as of November 3, 2026, with prices from £13,882 to £21,313, a £7,431 spread on the same certified stone. Diamonds Direct lists it at £21,313. 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

3.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.62°
Pavilion angle37.46°
OriginNatural
Grading LabGIA
CertificateGIA 2557266987
Dimensions8.50 × 9.83 × 5.84 mm
L/W Ratio1.16
Culet sizeNone
Top View
8.50 mm9.83 mm3.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557266987
Side View
Table 60.0%Crown 39.62°Girdle: STK-VTKPavilion 37.46°Culet: NoneDepth 59.4%

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 3
Current: £21,313 GBP|Low: £13,882 GBP|High: £23,229 GBP|Avg: £17,281 GBP|-8.2%
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5£13,882 GBP
Retailer 6£14,908 GBP
Retailer 3£15,155 GBP
Retailer 8£15,457 GBP
Retailer 7£15,795 GBP
Retailer 2£16,059 GBP
Retailer 10£16,161 GBP
Retailer 9£17,852 GBP
Retailer 4£19,092 GBP
Diamonds Direct£21,313 GBP

43 data points across 10 retailers

11 retailers£13,882 GBP to £21,313 GBP

A
Cheapest Retailer
-
£13,882 GBP
A
Retailer 2
-
£14,908 GBP
View
A
Retailer 3
-
£15,155 GBP
View
A
Retailer 4
-
£15,457 GBP
View
A
Retailer 5
-
£15,795 GBP
View
A
Retailer 6
-
£16,059 GBP
View
B+
Retailer 7
-
£16,161 GBP
View
Retailer 8
-
£17,852 GBP
View
Price last confirmed 15 days ago
B+
Retailer 9
-
£19,092 GBP
View
B
Retailer 10
-
£21,060 GBP
View
Most Expensive
B+
Diamonds Direct
999991 · Nov 3
£21,313 GBP
$28,527 USD
View
10 more retailers have this diamond
Prices start from £13,882 GBPSave up to £7,431 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
3.00ct Heart
£13,882 GBP