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Round|Natural|GIA

1.50ct H SI2 Round Natural Diamond

VG • H/SI2 • GIA 5556052378

Certificate GIA 5556052378

Diamond specifications and retailer prices

From £2,621 GBP
As of November 5, 2026
Save £3,704 GBP (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,324 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 very-good cut grade and certified by GIA 5556052378. Listed at 20 retailers as of November 5, 2026, with prices from £2,621 to £6,324, a £3,704 spread on the same certified stone. NZ Jewellers lists it at £6,324. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 5556052378
Dimensions7.09 × 7.13 × 4.57 mm
L/W Ratio1.01
Top View
7.09 mm7.13 mm1.50 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556052378
Side View
Table 57.0%Crown 38°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.3%

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: £6,324 GBP|Low: £2,621 GBP|High: £6,324 GBP|Avg: £3,566 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
Retailer 18
November 5, 2026
Retailer 10£2,621 GBP
Retailer 4£2,719 GBP
Retailer 8£2,817 GBP
Retailer 3£2,892 GBP
Retailer 6£2,893 GBP
Retailer 18£3,036 GBP
Retailer 9£3,288 GBP
Retailer 15£3,288 GBP
Retailer 14£3,299 GBP
Retailer 7£3,522 GBP
Retailer 13£3,522 GBP
Retailer 11£3,551 GBP
Retailer 17£3,641 GBP
Retailer 16£3,794 GBP
Retailer 2£3,857 GBP
Retailer 5£4,222 GBP
Retailer 12£5,766 GBP
NZ Jewellers£6,324 GBP

38 data points across 18 retailers

20 retailers£2,621 GBP to £6,324 GBP

A
Cheapest Retailer
-
£2,621 GBP
A
Retailer 2
-
£2,719 GBP
View
A
Retailer 3
-
£2,817 GBP
View
A
Retailer 4
-
£2,892 GBP
View
A
Retailer 5
-
£2,893 GBP
View
B+
Retailer 6
-
£3,036 GBP
View
Final sale: no returns
A
Retailer 7
-
£3,288 GBP
View
A
Retailer 8
-
£3,288 GBP
View
A
Retailer 9
-
£3,299 GBP
View
Retailer 10
-
£3,329 GBP
View
Price last confirmed 8 days ago
A
Retailer 11
-
£3,522 GBP
View
A
Retailer 12
-
£3,522 GBP
View
A
Retailer 13
-
£3,551 GBP
View
A
Retailer 14
-
£3,641 GBP
View
B+
Retailer 15
-
£3,794 GBP
View
A
Retailer 16
-
£3,857 GBP
View
Retailer 17
-
£4,057 GBP
View
Price last confirmed 14 days ago
B+
Retailer 18
-
£4,222 GBP
View
B
Retailer 19
-
£5,766 GBP
View
Most Expensive
B
NZ Jewellers
cb854a2f-3017-42df-b261-f05095a538fa · Nov 5
£6,324 GBP
$8,512 USD
View
19 more retailers have this diamond
Prices start from £2,621 GBPSave up to £3,704 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
£2,621 GBP