Radiant|Lab Grown|GIA

4.51ct D IF Radiant Lab Grown Diamond

GD • D/IF • GIA 1533678398

Certificate GIA 1533678398

Diamond specifications and retailer prices

From £6,292 GBP
$8,361 USD
As of October 28, 2026
Save £20,867 GBP (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £27,159 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 4.51ct lab-grown radiant diamond

This 4.51ct lab-grown radiant sits in the three to five carat band, graded D 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 1533678398. Listed at 19 retailers as of October 28, 2026, with prices from £6,292 to £27,159, a £20,867 spread on the same certified stone. Frank Darling lists it at £27,159. 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

4.51
Carat
D
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1533678398
Dimensions11.55 × 8.19 × 5.44 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
11.55 mm8.19 mm4.51 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1533678398
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.4%

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 28
Current: £27,159 GBP|Low: £6,292 GBP|High: £43,163 GBP|Avg: £21,512 GBP|-24.1%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 12£6,292 GBP
Retailer 10£7,575 GBP
Retailer 13£7,968 GBP
Retailer 9£8,158 GBP
Retailer 5£8,404 GBP
Retailer 8£13,400 GBP
Retailer 2£13,632 GBP
Retailer 11£26,317 GBP
Frank Darling£27,159 GBP
Retailer 6£37,396 GBP
Retailer 7£40,256 GBP
Retailer 3£41,136 GBP
Retailer 4£43,163 GBP

23 data points across 13 retailers

19 retailers£6,292 GBP to £27,159 GBP

B+
Cheapest Retailer
-
£6,292 GBP
$8,361 USD
B+
Retailer 2
-
£6,592 GBP
$8,759 USD
View
B+
Retailer 3
-
£6,856 GBP
$9,110 USD
View
B+
Retailer 4
-
£7,575 GBP
$10,065 USD
View
B+
Retailer 5
-
£7,647 GBP
$10,161 USD
View
B+
Retailer 6
-
£7,647 GBP
$10,161 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
£7,968 GBP
$10,587 USD
View
B+
Retailer 8
-
£8,158 GBP
$10,840 USD
View
B+
Retailer 9
-
£8,404 GBP
$11,167 USD
View
B
Retailer 10
-
£9,493 GBP
$12,614 USD
View
B
Retailer 11
-
£13,400 GBP
€16,958 EUR
View
B
Retailer 12
-
£13,632 GBP
View
B
Retailer 13
-
£23,429 GBP
$31,132 USD
View
B
Retailer 14
-
£26,317 GBP
$34,969 USD
View
Most Expensive
B
Frank Darling
FK85889LGMY · Oct 29
£27,159 GBP
$36,088 USD
View
14 more retailers have this diamond
Prices start from £6,292 GBPSave up to £20,867 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+
4.51ct Radiant
£6,292 GBP