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Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1563401068

Certificate GIA 1563401068

Diamond specifications and retailer prices

From £3,595 GBP
HK$37,400 HKD
As of October 28, 2026
Save £4,076 GBP (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £7,671 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1563401068. Listed at 12 retailers as of October 26, 2026, with prices from £3,595 to £7,671, a £4,076 spread on the same certified stone. Wholesale Diamonds Direct lists it at £7,671. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1563401068
Dimensions7.27 × 7.22 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.27 mm7.22 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1563401068
Side View
Table 59.0%Crown 36°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.7%

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: Oct 28
Current: £5,368 GBP|Low: £3,595 GBP|High: £8,077 GBP|Avg: £5,312 GBP|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
October 30, 2026
Retailer 10£3,595 GBP
Retailer 4£4,275 GBP
Retailer 11£4,345 GBP
Retailer 6£4,351 GBP
Retailer 7£4,588 GBP
Retailer 5£4,638 GBP
Retailer 2£4,727 GBP
Retailer 3£5,324 GBP
Retailer 1£5,368 GBP
Retailer 8£6,164 GBP
Retailer 9£7,468 GBP
Wholesale Diamonds Direct£7,671 GBP

10 data points across 12 retailers

12 retailers£3,595 GBP to £7,671 GBP

A
Cheapest Retailer
-
£3,595 GBP
HK$37,400 HKD
A
Retailer 2
-
£4,275 GBP
€5,422 EUR
View
A
Retailer 3
-
£4,345 GBP
$5,786 USD
View
A
Retailer 4
-
£4,351 GBP
$5,794 USD
View
Final sale: no returns
A
Retailer 5
-
£4,588 GBP
$6,110 USD
View
A
Retailer 6
-
£4,638 GBP
View
A
Retailer 7
-
£4,727 GBP
$6,295 USD
View
Retailer 8
-
£5,324 GBP
A$10,907 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
£5,368 GBP
View
B+
Retailer 10
-
£6,164 GBP
ZAR 132,614 ZAR
View
B+
Retailer 11
-
£7,468 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
576671765 · Oct 26
£7,671 GBP
$10,215 USD
View
11 more retailers have this diamond
Prices start from £3,595 GBPSave up to £4,076 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
£3,595 GBP