CaratHunter
Plans
Round|Natural|GIA

1.50ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6495725313

Certificate GIA 6495725313

Diamond specifications and retailer prices

From £4,971 GBP
As of November 1, 2026
Save £6,165 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £11,135 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6495725313. Listed at 19 retailers as of November 1, 2026, with prices from £4,971 to £11,135, a £6,165 spread on the same certified stone. NZ Jewellers lists it at £11,135. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6495725313
Dimensions7.37 × 7.34 × 4.52 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.37 mm7.34 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6495725313
Side View
Table 54.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: Very SmallDepth 61.4%

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 1
Current: £11,135 GBP|Low: £4,971 GBP|High: £11,135 GBP|Avg: £6,760 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 12£4,971 GBP
Retailer 3£5,040 GBP
Retailer 5£5,213 GBP
Retailer 15£5,505 GBP
Retailer 17£5,568 GBP
Retailer 6£6,032 GBP
Retailer 2£6,068 GBP
Retailer 13£6,124 GBP
Retailer 14£6,387 GBP
Retailer 7£6,627 GBP
Retailer 16£6,627 GBP
Retailer 8£6,850 GBP
Retailer 10£6,869 GBP
Retailer 9£6,960 GBP
Retailer 4£7,332 GBP
Retailer 11£9,253 GBP
NZ Jewellers£11,135 GBP

42 data points across 17 retailers

19 retailers£4,971 GBP to £11,135 GBP

B+
Cheapest Retailer
-
£4,971 GBP
B+
Retailer 2
-
£5,040 GBP
View
B+
Retailer 3
-
£5,190 GBP
View
B+
Retailer 4
-
£5,213 GBP
View
B
Retailer 5
-
£5,505 GBP
View
Retailer 6
-
£5,568 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£6,032 GBP
View
B+
Retailer 8
-
£6,068 GBP
View
B+
Retailer 9
-
£6,124 GBP
View
B
Retailer 10
-
£6,387 GBP
View
B
Retailer 11
-
£6,627 GBP
View
B
Retailer 12
-
£6,627 GBP
View
B
Retailer 13
-
£6,850 GBP
View
B
Retailer 14
-
£6,869 GBP
View
B
Retailer 15
-
£6,960 GBP
View
Retailer 16
-
£7,332 GBP
View
Price last confirmed 14 days ago
B
Retailer 17
-
£9,253 GBP
View
B
Retailer 18
-
£10,426 GBP
View
Most Expensive
B
NZ Jewellers
3c028a4d-0006-4d6a-9766-fb3c3579dfc3 · Nov 5
£11,135 GBP
$14,987 USD
View
18 more retailers have this diamond
Prices start from £4,971 GBPSave up to £6,165 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 Round
£4,971 GBP