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Heart|Natural|GIA

1.00ct F SI2 Heart Natural Diamond

VG • F/SI2 • GIA 5423613743

Certificate GIA 5423613743

Diamond specifications and retailer prices

From £1,431 GBP
As of November 6, 2026
Save £1,623 GBP (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,444 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5423613743. Listed at 14 retailers as of November 4, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5423613743
Dimensions5.88 × 5.26 × 3.67 mm
L/W Ratio1.12
Top View
5.88 mm5.26 mm1.00 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5423613743
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,444 GBP|Low: £1,457 GBP|High: £3,458 GBP|Avg: £2,214 GBP|+2.8%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£1,457 GBP
Retailer 9£1,461 GBP
Retailer 8£1,555 GBP
Retailer 7£1,584 GBP
Retailer 6£1,602 GBP
Retailer 3£1,900 GBP
Retailer 2£2,170 GBP
Retailer 4£3,054 GBP
Queensmith£3,444 GBP

42 data points across 9 retailers

14 retailers£1,431 GBP to £3,054 GBP

B+
Cheapest Retailer
-
£1,431 GBP
B+
Retailer 2
-
£1,457 GBP
View
B+
Retailer 3
-
£1,461 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,555 GBP
View
Retailer 5
-
£1,584 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,602 GBP
View
B+
Retailer 7
-
£1,626 GBP
View
B
Retailer 8
-
£1,763 GBP
View
B
Retailer 9
-
£1,763 GBP
View
B
Retailer 10
-
£1,823 GBP
View
B
Retailer 11
-
£1,900 GBP
View
B
Retailer 12
-
£2,170 GBP
View
B
Retailer 13
-
£3,054 GBP
View
Most Expensive
Queensmith
5423613743 · Oct 28
£3,444 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £1,431 GBPSave up to £1,623 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.

B+
1.00ct Heart
£1,431 GBP