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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7562399825

Certificate GIA 7562399825

Diamond specifications and retailer prices

From £3,541 GBP
As of November 5, 2026
Save £3,232 GBP (48%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £7,444 GBP at Queensmith · As of October 15, 2026
View at Queensmith

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7562399825. Listed at 26 retailers as of November 4, 2026, with a 91% 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

1.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7562399825
Dimensions7.36 × 7.32 × 4.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Cloud, Indented Natural, Natural
Top View
7.36 mm7.32 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7562399825
Side View
Table 61.0%Crown 34°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.5%

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: £7,444 GBP|Low: £3,541 GBP|High: £7,444 GBP|Avg: £4,954 GBP|+2.2%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
Retailer 17
Retailer 18
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Retailer 22
Retailer 23
November 6, 2026
Retailer 9£3,541 GBP
Retailer 21£3,641 GBP
Retailer 6£3,643 GBP
Retailer 5£3,688 GBP
Retailer 23£3,854 GBP
Retailer 20£4,038 GBP
Retailer 8£4,126 GBP
Retailer 11£4,166 GBP
Retailer 18£4,175 GBP
Retailer 2£4,250 GBP
Retailer 13£4,324 GBP
Retailer 12£4,405 GBP
Retailer 3£4,662 GBP
Retailer 14£4,662 GBP
Retailer 15£4,675 GBP
Retailer 16£4,692 GBP
Retailer 10£4,724 GBP
Retailer 7£4,819 GBP
Retailer 19£4,938 GBP
Retailer 17£5,624 GBP
Retailer 4£6,678 GBP
Retailer 22£6,773 GBP
Queensmith£7,444 GBP

21 data points across 23 retailers

26 retailers£3,541 GBP to £6,773 GBP

A
Cheapest Retailer
-
£3,541 GBP
A
Retailer 2
-
£3,641 GBP
View
A
Retailer 3
-
£3,643 GBP
View
A
Retailer 4
-
£3,688 GBP
View
A
Retailer 5
-
£3,792 GBP
View
A
Retailer 6
-
£3,854 GBP
View
Final sale: no returns
Retailer 7
-
£3,940 GBP
View
Price last confirmed 29 days ago
A
Retailer 8
-
£4,038 GBP
View
B+
Retailer 9
-
£4,126 GBP
View
Retailer 10
-
£4,166 GBP
View
Price last confirmed 8 days ago
A
Retailer 11
-
£4,175 GBP
View
B+
Retailer 12
-
£4,250 GBP
View
B+
Retailer 13
-
£4,324 GBP
View
B+
Retailer 14
-
£4,405 GBP
View
B+
Retailer 15
-
£4,662 GBP
View
B+
Retailer 16
-
£4,662 GBP
View
Retailer 17
-
£4,675 GBP
View
Price last confirmed 27 days ago
Retailer 18
-
£4,692 GBP
View
Price last confirmed 22 days ago
B+
Retailer 19
-
£4,724 GBP
View
Retailer 20
-
£4,730 GBP
View
Price last confirmed 29 days ago
B+
Retailer 21
-
£4,819 GBP
View
B+
Retailer 22
-
£4,938 GBP
View
B
Retailer 23
-
£5,624 GBP
View
B
Retailer 24
-
£6,678 GBP
View
B
Retailer 25
-
£6,773 GBP
View
Most Expensive
Queensmith
7562399825 · Oct 15
£7,444 GBP
View
Price last confirmed 22 days ago
25 more retailers have this diamond
Prices start from £3,541 GBPSave up to £3,232 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 Round
£3,541 GBP