CaratHunter
Plans
Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1236706610

Certificate GIA 1236706610

Diamond specifications and retailer prices

From £4,898 GBP
As of November 6, 2026
Save £4,720 GBP (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £11,266 GBP at NZ Jewellers · As of October 23, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1236706610. Listed at 19 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. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1236706610
Dimensions7.28 × 7.22 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.28 mm7.22 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236706610
Side View
Table 59.0%Crown 36°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.6%

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 6
Current: £4,898 GBP|Low: £4,898 GBP|High: £9,796 GBP|Avg: £6,774 GBP|-5.3%
Retailer 1
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 1£4,898 GBP
Retailer 2£5,294 GBP
Retailer 16£5,375 GBP
Retailer 12£5,794 GBP
Retailer 5£5,997 GBP
Retailer 3£6,063 GBP
Retailer 11£6,309 GBP
Retailer 10£6,342 GBP
Retailer 9£6,345 GBP
Retailer 7£6,387 GBP
Retailer 8£6,665 GBP
Retailer 15£6,803 GBP
Retailer 4£6,909 GBP
Retailer 14£7,185 GBP
Retailer 6£7,385 GBP
Retailer 13£8,085 GBP
Retailer 17£9,618 GBP

22 data points across 17 retailers

19 retailers£4,898 GBP to £9,618 GBP

A
Cheapest Retailer
-
£4,898 GBP
A
Retailer 2
-
£5,294 GBP
View
A
Retailer 3
-
£5,375 GBP
View
Retailer 4
-
£5,513 GBP
View
Price last confirmed 25 days ago
A
Retailer 5
-
£5,794 GBP
View
A
Retailer 6
-
£5,997 GBP
View
A
Retailer 7
-
£6,063 GBP
View
B+
Retailer 8
-
£6,309 GBP
View
B+
Retailer 9
-
£6,342 GBP
View
Retailer 10
-
£6,345 GBP
View
Price last confirmed 14 days ago
B+
Retailer 11
-
£6,387 GBP
View
Final sale: no returns
B+
Retailer 12
-
£6,665 GBP
View
B+
Retailer 13
-
£6,803 GBP
View
Retailer 14
-
£6,909 GBP
View
Price last confirmed 3 days ago
B+
Retailer 15
-
£7,185 GBP
View
B+
Retailer 16
-
£7,385 GBP
View
B+
Retailer 17
-
£8,085 GBP
View
B
Retailer 18
-
£9,618 GBP
View
Most Expensive
NZ Jewellers
59cabcad-5a56-4d51-8662-0e41e98f1b52 · Oct 23
£11,266 GBP
$15,163 USD
View
Price last confirmed 13 days ago
18 more retailers have this diamond
Prices start from £4,898 GBPSave up to £4,720 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
£4,898 GBP