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Heart|Natural|GIA

1.01ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 1555103137

Certificate GIA 1555103137

Diamond specifications and retailer prices

From £1,042 GBP
As of November 6, 2026
Save £1,290 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,565 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct natural heart sits in the classic one-carat band, graded F 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 1555103137. Listed at 16 retailers as of November 4, 2026, with a 124% 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

1.01
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555103137
Dimensions5.83 × 6.87 × 4.34 mm
L/W Ratio1.18
Girdle conditionFaceted
Top View
5.83 mm6.87 mm1.01 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555103137
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.2%

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: £1,231 GBP|Low: £1,033 GBP|High: £2,504 GBP|Avg: £1,460 GBP|-5.2%
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
November 6, 2026
Retailer 3£1,042 GBP
Retailer 4£1,116 GBP
Retailer 11£1,169 GBP
Retailer 13£1,171 GBP
Retailer 5£1,192 GBP
Retailer 1£1,231 GBP
Retailer 10£1,240 GBP
Retailer 2£1,278 GBP
Retailer 7£1,325 GBP
Retailer 6£1,482 GBP
Retailer 8£1,629 GBP
Retailer 12£2,158 GBP
Retailer 9£2,332 GBP

27 data points across 13 retailers

16 retailers£1,042 GBP to £2,332 GBP

A
Cheapest Retailer
-
£1,042 GBP
A
Retailer 2
-
£1,116 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,169 GBP
View
A
Retailer 4
-
£1,171 GBP
View
A
Retailer 5
-
£1,192 GBP
View
A
Retailer 6
-
£1,231 GBP
View
A
Retailer 7
-
£1,240 GBP
View
A
Retailer 8
-
£1,278 GBP
View
A
Retailer 9
-
£1,325 GBP
View
A
Retailer 10
-
£1,482 GBP
View
B+
Retailer 11
-
£1,629 GBP
View
B+
Retailer 12
-
£1,645 GBP
View
Retailer 13
-
£1,847 GBP
View
Price last confirmed 33 days ago
B+
Retailer 14
-
£2,158 GBP
View
B+
Retailer 15
-
£2,332 GBP
View
Most Expensive
NZ Jewellers
9da6b538-8bf0-45f9-87c0-2c20698bda2b · Sep 25
£3,565 GBP
$4,772 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from £1,042 GBPSave up to £1,290 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
1.01ct Heart
£1,042 GBP