Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 2537112362

Certificate GIA 2537112362

Diamond specifications and retailer prices

From £3,488 GBP
As of November 6, 2026
Save £3,363 GBP (49%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £7,801 GBP at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2537112362. Listed at 26 retailers as of November 4, 2026, with a 96% 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2537112362
Dimensions7.18 × 7.10 × 4.60 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.18 mm7.10 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2537112362
Side View
Table 59.0%Crown 35.5°Girdle: THN-THKPavilion 41.4°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,400 GBP|Low: £3,071 GBP|High: £6,953 GBP|Avg: £4,488 GBP|-0.5%
Retailer 1
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£3,488 GBP
Retailer 3£3,589 GBP
Retailer 2£3,685 GBP
Retailer 8£3,686 GBP
Retailer 9£3,900 GBP
Retailer 11£4,225 GBP
Retailer 1£4,400 GBP
Retailer 10£4,634 GBP
Retailer 5£4,993 GBP
Retailer 4£5,690 GBP
Retailer 6£6,852 GBP

41 data points across 11 retailers

26 retailers£3,488 GBP to £6,852 GBP

A
Cheapest Retailer
-
£3,488 GBP
A
Retailer 2
-
£3,582 GBP
View
A
Retailer 3
-
£3,589 GBP
View
A
Retailer 4
-
£3,685 GBP
View
A
Retailer 5
-
£3,686 GBP
View
B+
Retailer 6
-
£3,732 GBP
View
B+
Retailer 7
-
£3,900 GBP
View
Final sale: no returns
B+
Retailer 8
-
£3,948 GBP
View
Retailer 9
-
£4,218 GBP
View
Price last confirmed 14 days ago
Retailer 10
-
£4,225 GBP
View
Price last confirmed 50 days ago
Retailer 11
-
£4,225 GBP
View
Price last confirmed 36 days ago
Retailer 12
-
£4,225 GBP
View
Price last confirmed 38 days ago
B+
Retailer 13
-
£4,400 GBP
View
B+
Retailer 14
-
£4,452 GBP
View
B+
Retailer 15
-
£4,610 GBP
View
B+
Retailer 16
-
£4,610 GBP
View
Retailer 17
-
£4,634 GBP
View
Price last confirmed 33 days ago
B+
Retailer 18
-
£4,767 GBP
View
Retailer 19
-
£4,875 GBP
View
Price last confirmed 38 days ago
Retailer 20
-
£4,875 GBP
View
Price last confirmed 45 days ago
B
Retailer 21
-
£4,993 GBP
View
B
Retailer 22
-
£5,690 GBP
View
B
Retailer 23
-
£6,758 GBP
View
B
Retailer 24
-
£6,852 GBP
View
Retailer 25
-
£7,801 GBP
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
6a12631b-4d14-4861-9e51-608c4650eb9e · Sep 28
£7,801 GBP
$10,441 USD
View
Price last confirmed 39 days ago
25 more retailers have this diamond
Prices start from £3,488 GBPSave up to £3,363 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
£3,488 GBP