Radiant|Lab Grown|GIA

1.45ct E IF Radiant Lab Grown Diamond

GD • E/IF • GIA 2507851204

Certificate GIA 2507851204

Diamond specifications and retailer prices

From £819 GBP
$1,097 USD
As of October 30, 2026
Save £1,912 GBP (70%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £3,721 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.45ct lab-grown radiant diamond

This 1.45ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507851204. Listed at 25 retailers as of October 30, 2026, with a 234% 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

1.45
Carat
E
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2507851204
Dimensions7.59 × 5.71 × 3.82 mm
L/W Ratio1.33
Top View
7.59 mm5.71 mm1.45 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507851204
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.9%

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: Oct 30
Current: £2,731 GBP|Low: £790 GBP|High: £3,748 GBP|Avg: £1,918 GBP|-0.8%
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
Retailer 18
Retailer 19
Retailer 20
Taylor and Hart
November 1, 2026
Retailer 6£819 GBP
Retailer 9£883 GBP
Retailer 5£890 GBP
Retailer 7£916 GBP
Retailer 16£949 GBP
Retailer 2£993 GBP
Retailer 4£1,078 GBP
Retailer 8£1,149 GBP
Retailer 12£1,608 GBP
Retailer 10£1,870 GBP
Retailer 17£1,927 GBP
Retailer 20£1,964 GBP
Retailer 14£2,012 GBP
Retailer 15£2,164 GBP
Retailer 19£2,164 GBP
Retailer 13£2,202 GBP
Retailer 11£2,536 GBP
Retailer 3£2,648 GBP
Retailer 1£2,731 GBP
Retailer 18£3,386 GBP
Taylor and Hart£3,721 GBP

42 data points across 21 retailers

25 retailers£819 GBP to £2,731 GBP

B+
Cheapest Retailer
-
£819 GBP
$1,097 USD
B+
Retailer 2
-
£883 GBP
$1,183 USD
View
B+
Retailer 3
-
£890 GBP
$1,193 USD
View
B+
Retailer 4
-
£916 GBP
$1,228 USD
View
Final sale: no returns
B+
Retailer 5
-
£949 GBP
$1,272 USD
View
B
Retailer 6
-
£993 GBP
$1,330 USD
View
B
Retailer 7
-
£1,078 GBP
$1,445 USD
View
B
Retailer 8
-
£1,149 GBP
$1,540 USD
View
B
Retailer 9
-
£1,348 GBP
$1,806 USD
View
B
Retailer 10
-
£1,608 GBP
€2,052 EUR
View
Retailer 11
-
£1,870 GBP
$2,505 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
£1,927 GBP
ZAR 41,704 ZAR
View
B
Retailer 13
-
£1,964 GBP
$2,632 USD
View
B
Retailer 14
-
£2,008 GBP
$2,691 USD
View
B
Retailer 15
-
£2,012 GBP
A$4,147 AUD
View
B
Retailer 16
-
£2,164 GBP
$2,900 USD
View
B
Retailer 17
-
£2,164 GBP
$2,900 USD
View
B
Retailer 18
-
£2,202 GBP
$2,950 USD
View
B
Retailer 19
-
£2,536 GBP
View
B
Retailer 20
-
£2,648 GBP
$3,547 USD
View
B
Retailer 21
-
£2,676 GBP
CA$4,980 CAD
View
B
Retailer 22
-
£2,731 GBP
A$5,629 AUD
View
Retailer 23
-
£3,386 GBP
View
Price under review
Most Expensive
Taylor and Hart
C5497SC · Oct 31
£3,721 GBP
$4,986 USD
View
Price under review
23 more retailers have this diamond
Prices start from £819 GBPSave up to £1,912 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+
1.45ct Radiant
£819 GBP