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Heart|Natural|GIA

3.51ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 1549759784

Certificate GIA 1549759784

Diamond specifications and retailer prices

From £22,615 GBP
As of November 6, 2026
Save £18,298 GBP (45%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £40,913 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.51ct natural heart diamond

This 3.51ct natural heart sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1549759784. Listed at 6 retailers as of November 4, 2026, with prices from £22,615 to £40,913, a £18,298 spread on the same certified stone. MOH London lists it at £40,913. 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

3.51
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1549759784
Dimensions10.51 × 8.94 × 6.17 mm
L/W Ratio1.18
Girdle conditionFaceted
Top View
10.51 mm8.94 mm3.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1549759784
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NDepth 58.8%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £40,913 GBP|Low: £22,333 GBP|High: £46,639 GBP|Avg: £30,568 GBP|-12.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£22,615 GBP
Retailer 3£24,078 GBP
Retailer 5£26,793 GBP
Retailer 2£33,816 GBP
MOH London£40,913 GBP

29 data points across 5 retailers

6 retailers£22,615 GBP to £40,913 GBP

B+
Cheapest Retailer
-
£22,615 GBP
B+
Retailer 2
-
£24,078 GBP
View
Final sale: no returns
Retailer 3
-
£26,793 GBP
View
Price last confirmed 17 days ago
Retailer 4
-
£30,259 GBP
View
Price last confirmed 43 days ago
B
Retailer 5
-
£33,816 GBP
View
Most Expensive
B
MOH London
D64957477 · Nov 4
£40,913 GBP
View
5 more retailers have this diamond
Prices start from £22,615 GBPSave up to £18,298 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+
3.51ct Heart
£22,615 GBP