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Heart|Natural|GIA

1.50ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 3475555033

Certificate GIA 3475555033

Diamond specifications and retailer prices

From £4,397 GBP
As of November 4, 2026
Save £3,441 GBP (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £8,155 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3475555033. Listed at 20 retailers as of November 4, 2026, with a 78% 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

1.50
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3475555033
Dimensions6.97 × 6.64 × 4.48 mm
L/W Ratio1.05
Top View
6.97 mm6.64 mm1.50 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3475555033
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £8,155 GBP|Low: £4,397 GBP|High: £8,193 GBP|Avg: £6,031 GBP|+1.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7£4,397 GBP
Retailer 9£4,504 GBP
Retailer 3£4,716 GBP
Retailer 11£4,716 GBP
Retailer 4£5,265 GBP
Retailer 10£5,408 GBP
Retailer 8£5,437 GBP
Retailer 2£6,127 GBP
Retailer 5£6,880 GBP
Retailer 6£7,838 GBP
Queensmith£8,155 GBP

42 data points across 11 retailers

20 retailers£4,397 GBP to £7,838 GBP

B
Cheapest Retailer
-
£4,397 GBP
B
Retailer 2
-
£4,456 GBP
View
B
Retailer 3
-
£4,504 GBP
View
B
Retailer 4
-
£4,716 GBP
View
Final sale: no returns
Retailer 5
-
£4,716 GBP
View
Price last confirmed 30 days ago
B
Retailer 6
-
£4,737 GBP
View
B
Retailer 7
-
£4,755 GBP
View
B
Retailer 8
-
£5,025 GBP
View
B
Retailer 9
-
£5,265 GBP
View
B
Retailer 10
-
£5,408 GBP
View
Retailer 11
-
£5,437 GBP
View
Price last confirmed 16 days ago
B
Retailer 12
-
£5,454 GBP
View
B
Retailer 13
-
£5,454 GBP
View
B
Retailer 14
-
£5,633 GBP
View
B
Retailer 15
-
£5,750 GBP
View
B
Retailer 16
-
£6,127 GBP
View
Retailer 17
-
£6,214 GBP
View
Price last confirmed 23 days ago
B
Retailer 18
-
£6,880 GBP
View
B
Retailer 19
-
£7,838 GBP
View
Most Expensive
Queensmith
3475555033 · Oct 28
£8,155 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from £4,397 GBPSave up to £3,441 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
1.50ct Heart
£4,397 GBP