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Heart|Natural|GIA

1.50ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 7551151543

Certificate GIA 7551151543

Diamond specifications and retailer prices

From £3,396 GBP
As of November 5, 2026
Save £303 GBP (8%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,580 GBP at Queensmith · As of October 25, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551151543. Listed at 15 retailers as of November 5, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.50
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551151543
Dimensions7.20 × 8.18 × 4.63 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Knot
Top View
7.20 mm8.18 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551151543
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 56.6%

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 5
Current: £6,580 GBP|Low: £2,782 GBP|High: £6,628 GBP|Avg: £4,077 GBP|+1.2%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 8£2,782 GBP
Retailer 7£3,012 GBP
Retailer 2£3,396 GBP
Retailer 9£3,459 GBP
Retailer 4£3,511 GBP
Retailer 3£3,571 GBP
Retailer 5£3,680 GBP
Retailer 10£3,748 GBP
Retailer 12£3,860 GBP
Retailer 11£4,324 GBP
Retailer 6£5,976 GBP
Queensmith£6,580 GBP

37 data points across 12 retailers

15 retailers£3,396 GBP to £3,699 GBP

Retailer 1
-
£2,782 GBP
Price last confirmed 9 days ago
Retailer 2
-
£3,012 GBP
View
Price last confirmed 21 days ago
A
Retailer 3
-
£3,396 GBP
View
A
Retailer 4
-
£3,511 GBP
View
Retailer 5
-
£3,571 GBP
View
Price last confirmed 11 days ago
Retailer 6
-
£3,680 GBP
View
Price last confirmed 11 days ago
A
Retailer 7
-
£3,699 GBP
View
Retailer 8
-
£3,748 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
£3,748 GBP
View
Price last confirmed 21 days ago
Retailer 10
-
£3,748 GBP
View
Price last confirmed 19 days ago
Retailer 11
-
£3,860 GBP
View
Price last confirmed 12 days ago
Retailer 12
-
£4,324 GBP
View
Price last confirmed 18 days ago
Retailer 13
-
£5,976 GBP
View
Price last confirmed 11 days ago
Retailer 14
-
£6,529 GBP
View
Price last confirmed 19 days ago
Most Expensive
Queensmith
7551151543 · Oct 25
£6,580 GBP
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from £3,396 GBPSave up to £303 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
1.50ct Heart
£3,396 GBP