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Radiant|Lab Grown|GIA

3.18ct E IF Radiant Lab Grown Diamond

GD • E/IF • GIA 2537650853

Certificate GIA 2537650853

Diamond specifications and retailer prices

From £4,254 GBP
$5,665 USD
As of October 28, 2026
Save £6,771 GBP (61%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £15,281 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 3.18ct lab-grown radiant diamond

This 3.18ct lab-grown radiant sits in the three to five 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 2537650853. Listed at 13 retailers as of October 28, 2026, with a 159% 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

3.18
Carat
E
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2537650853
Dimensions8.19 × 8.18 × 5.07 mm
L/W Ratio1.00
Top View
8.19 mm8.18 mm3.18 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537650853
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £15,281 GBP|Low: £2,878 GBP|High: £29,609 GBP|Avg: £8,952 GBP|+56.4%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 11£4,254 GBP
Retailer 14£4,705 GBP
Retailer 17£5,480 GBP
Retailer 7£5,560 GBP
Retailer 12£5,632 GBP
Retailer 9£5,802 GBP
Retailer 5£6,013 GBP
Retailer 3£7,672 GBP
Retailer 15£7,945 GBP
Retailer 4£8,238 GBP
Retailer 6£9,502 GBP
Retailer 2£9,614 GBP
Retailer 8£10,321 GBP
Retailer 16£10,424 GBP
Retailer 10£11,026 GBP
Frank Darling£15,281 GBP
Retailer 13£29,474 GBP

35 data points across 17 retailers

13 retailers£4,254 GBP to £11,026 GBP

B
Cheapest Retailer
-
£4,254 GBP
$5,665 USD
B
Retailer 2
-
£4,705 GBP
$6,265 USD
View
B
Retailer 3
-
£5,480 GBP
$7,298 USD
View
Final sale: no returns
B
Retailer 4
-
£5,632 GBP
$7,500 USD
View
B
Retailer 5
-
£6,013 GBP
$8,008 USD
View
B
Retailer 6
-
£7,672 GBP
$10,217 USD
View
B
Retailer 7
-
£7,945 GBP
$10,580 USD
View
B
Retailer 8
-
£8,238 GBP
$10,971 USD
View
B
Retailer 9
-
£9,614 GBP
€12,193 EUR
View
B
Retailer 10
-
£10,424 GBP
$13,881 USD
View
B
Retailer 11
-
£11,026 GBP
View
Most Expensive
Frank Darling
MR-86979GR · Oct 29
£15,281 GBP
$20,349 USD
View
Price under review
11 more retailers have this diamond
Prices start from £4,254 GBPSave up to £6,771 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
3.18ct Radiant
£4,254 GBP