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Radiant|Lab Grown|IGI

3.03ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG727578312

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG727578312

Diamond specifications and retailer prices

From £910 GBP
$1,219 USD
As of October 30, 2026
Save £5,016 GBP (85%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £5,926 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.03ct lab-grown radiant diamond

This 3.03ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727578312 or 727578312. Listed at 30 retailers as of October 29, 2026, with prices from £910 to £5,926, a £5,016 spread on the same certified stone. Brilliant Earth lists it at £5,926. 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

3.03
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727578312
Dimensions10.23 × 7.32 × 4.71 mm
L/W Ratio1.40
Culet sizePointed
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
10.23 mm7.32 mm3.03 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727578312
Side View
Table 64.0%Crown 40.4°Girdle: MediumPavilion 33.2°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £5,926 GBP|Low: £910 GBP|High: £8,978 GBP|Avg: £2,830 GBP|-34.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 11
Retailer 12
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Retailer 17
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Retailer 19
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Retailer 22
October 31, 2026
Retailer 19£910 GBP
Retailer 18£1,019 GBP
Retailer 8£1,213 GBP
Retailer 16£1,239 GBP
Retailer 21£1,280 GBP
Retailer 4£1,528 GBP
Retailer 12£1,733 GBP
Retailer 11£1,840 GBP
Retailer 13£2,022 GBP
Retailer 2£2,176 GBP
Retailer 7£2,450 GBP
Retailer 6£2,548 GBP
Retailer 10£2,612 GBP
Retailer 14£2,985 GBP
Retailer 17£3,028 GBP
Retailer 20£3,317 GBP
Retailer 5£3,699 GBP
Retailer 3£3,711 GBP
Retailer 9£3,716 GBP
Retailer 22£4,026 GBP
Retailer 15£5,027 GBP
Brilliant Earth£5,926 GBP

33 data points across 22 retailers

30 retailers£910 GBP to £5,926 GBP

A
Cheapest Retailer
-
£910 GBP
$1,219 USD
A
Retailer 2
-
£1,019 GBP
$1,365 USD
View
Final sale: no returns
Retailer 3
-
£1,070 GBP
$1,434 USD
View
Price last confirmed 31 days ago
Retailer 4
-
£1,155 GBP
$1,548 USD
View
Price last confirmed 27 days ago
Retailer 5
-
£1,164 GBP
$1,560 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
£1,213 GBP
$1,625 USD
View
Retailer 7
-
£1,224 GBP
$1,640 USD
View
Price last confirmed 33 days ago
A
Retailer 8
-
£1,239 GBP
$1,660 USD
View
A
Retailer 9
-
£1,280 GBP
HK$13,400 HKD
View
A
Retailer 10
-
£1,528 GBP
View
A
Retailer 11
-
£1,733 GBP
$2,322 USD
View
Retailer 12
-
£1,840 GBP
€2,348 EUR
View
Price last confirmed 7 days ago
A
Retailer 13
-
£2,022 GBP
$2,709 USD
View
A
Retailer 14
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£2,165 GBP
$2,901 USD
View
Retailer 15
-
£2,165 GBP
$2,901 USD
View
Price last confirmed 20 days ago
A
Retailer 16
-
£2,176 GBP
$2,916 USD
View
Retailer 17
-
£2,327 GBP
$3,118 USD
View
Price last confirmed 30 days ago
A
Retailer 18
-
£2,450 GBP
ZAR 53,038 ZAR
View
B+
Retailer 19
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£2,548 GBP
View
Retailer 20
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£2,612 GBP
A$5,385 AUD
View
Price last confirmed 8 days ago
B+
Retailer 21
-
£2,985 GBP
$4,000 USD
View
B+
Retailer 22
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£3,028 GBP
$4,057 USD
View
B+
Retailer 23
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£3,317 GBP
$4,445 USD
View
B+
Retailer 24
-
£3,699 GBP
$4,956 USD
View
B+
Retailer 25
-
£3,711 GBP
SGD 6,720 SGD
View
B+
Retailer 26
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£3,716 GBP
View
B+
Retailer 27
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£4,026 GBP
$5,395 USD
View
Retailer 28
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£4,110 GBP
$5,507 USD
View
Price last confirmed 102 days ago
Retailer 29
-
£5,027 GBP
A$10,362 AUD
View
Price last confirmed 30 days ago
Most Expensive
B
Brilliant Earth
15743754A · Oct 29
£5,926 GBP
$7,940 USD
View
29 more retailers have this diamond
Prices start from £910 GBPSave up to £5,016 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
3.03ct Radiant
£910 GBP