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Round|Lab Grown|IGI

4.73ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG836616557

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836616557

Diamond specifications and retailer prices

From £4,038 GBP
As of October 30, 2026
Save £8,239 GBP (67%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £12,277 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.73ct lab-grown round diamond

This 4.73ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836616557 or 836616557. Listed at 13 retailers as of October 30, 2026, with prices from £4,038 to £12,277, a £8,239 spread on the same certified stone. Brilliant Earth lists it at £12,277. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.73
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836616557
Dimensions10.74 × 10.81 × 6.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.74 mm10.81 mm4.73 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836616557
Side View
Table 58.0%Crown 35.1°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.9%

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 30
Current: £12,277 GBP|Low: £4,025 GBP|High: £16,158 GBP|Avg: £6,768 GBP|-24.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 7£4,038 GBP
Retailer 12£4,105 GBP
Retailer 5£4,141 GBP
Retailer 6£4,782 GBP
Retailer 2£5,313 GBP
Retailer 4£5,645 GBP
Retailer 11£6,265 GBP
Retailer 3£6,342 GBP
Retailer 10£6,856 GBP
Retailer 13£7,457 GBP
Retailer 9£8,538 GBP
Retailer 8£8,730 GBP
Brilliant Earth£12,277 GBP

13 data points across 13 retailers

13 retailers£4,038 GBP to £12,277 GBP

A
Cheapest Retailer
-
£4,038 GBP
A
Retailer 2
-
£4,105 GBP
$5,500 USD
View
A
Retailer 3
-
£4,141 GBP
$5,548 USD
View
Final sale: no returns
A
Retailer 4
-
£4,782 GBP
$6,408 USD
View
B+
Retailer 5
-
£5,313 GBP
View
B+
Retailer 6
-
£5,645 GBP
$7,564 USD
View
B+
Retailer 7
-
£6,265 GBP
$8,395 USD
View
B+
Retailer 8
-
£6,342 GBP
$8,497 USD
View
B+
Retailer 9
-
£6,856 GBP
€8,749 EUR
View
B+
Retailer 10
-
£7,457 GBP
$9,991 USD
View
B+
Retailer 11
-
£8,538 GBP
View
B+
Retailer 12
-
£8,730 GBP
ZAR 188,960 ZAR
View
Most Expensive
B
Brilliant Earth
22192213A · Oct 31
£12,277 GBP
$16,450 USD
View
12 more retailers have this diamond
Prices start from £4,038 GBPSave up to £8,239 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
4.73ct Round
£4,038 GBP