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Radiant|Lab Grown|IGI

2.91ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG715598171

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

Certificate IGI LG715598171

Diamond specifications and retailer prices

From £694 GBP
$924 USD
As of October 30, 2026
Save £7,176 GBP (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £7,870 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.91ct lab-grown radiant diamond

This 2.91ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG715598171 or 715598171. Listed at 27 retailers as of October 29, 2026, with prices from £694 to £7,870, a £7,176 spread on the same certified stone. Brilliant Earth lists it at £7,870. 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

2.91
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG715598171
Dimensions10.78 × 7.20 × 4.54 mm
L/W Ratio1.50
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
10.78 mm7.20 mm2.91 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG715598171
Side View
Table 57.0%Crown 32.7°Girdle: MediumPavilion 32°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £7,870 GBP|Low: £684 GBP|High: £7,870 GBP|Avg: £2,213 GBP
Brilliant Earth
Retailer 2
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October 30, 2026
Retailer 5£694 GBP
Retailer 23£755 GBP
Retailer 14£776 GBP
Retailer 4£804 GBP
Retailer 15£804 GBP
Retailer 20£935 GBP
Retailer 2£980 GBP
Retailer 7£1,004 GBP
Retailer 12£1,086 GBP
Retailer 21£1,227 GBP
Retailer 13£1,277 GBP
Retailer 6£1,665 GBP
Retailer 8£1,790 GBP
Retailer 3£1,910 GBP
Retailer 22£2,107 GBP
Retailer 19£2,291 GBP
Retailer 11£2,449 GBP
Retailer 17£2,566 GBP
Retailer 9£2,606 GBP
Retailer 25£3,028 GBP
Retailer 16£3,131 GBP
Retailer 18£3,160 GBP
Retailer 24£4,014 GBP
Retailer 10£6,158 GBP
Brilliant Earth£7,870 GBP

36 data points across 25 retailers

27 retailers£694 GBP to £7,870 GBP

A
Cheapest Retailer
-
£694 GBP
$924 USD
A
Retailer 2
-
£755 GBP
$1,005 USD
View
A
Retailer 3
-
£776 GBP
$1,033 USD
View
Final sale: no returns
A
Retailer 4
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£804 GBP
$1,071 USD
View
Retailer 5
-
£804 GBP
$1,071 USD
View
Price last confirmed 13 days ago
A
Retailer 6
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£935 GBP
$1,245 USD
View
A
Retailer 7
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£980 GBP
View
A
Retailer 8
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£1,004 GBP
$1,337 USD
View
A
Retailer 9
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£1,086 GBP
HK$11,300 HKD
View
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Retailer 10
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£1,227 GBP
$1,634 USD
View
A
Retailer 11
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£1,277 GBP
View
A
Retailer 12
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£1,665 GBP
$2,217 USD
View
A
Retailer 13
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£1,790 GBP
$2,384 USD
View
A
Retailer 14
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£1,910 GBP
$2,543 USD
View
Retailer 15
-
£2,107 GBP
A$4,316 AUD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
£2,291 GBP
ZAR 49,292 ZAR
View
B+
Retailer 17
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£2,449 GBP
View
B+
Retailer 18
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£2,517 GBP
$3,352 USD
View
B+
Retailer 19
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£2,566 GBP
$3,417 USD
View
B+
Retailer 20
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£2,606 GBP
$3,470 USD
View
B+
Retailer 21
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£3,028 GBP
View
B+
Retailer 22
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£3,131 GBP
SGD 5,635 SGD
View
B+
Retailer 23
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£3,160 GBP
$4,209 USD
View
Retailer 24
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£4,014 GBP
$5,345 USD
View
Price last confirmed 9 days ago
Retailer 25
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£4,292 GBP
View
Price last confirmed 13 days ago
B
Retailer 26
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£6,158 GBP
$8,200 USD
View
Most Expensive
B
Brilliant Earth
20152481Y · Oct 29
£7,870 GBP
$10,480 USD
View
26 more retailers have this diamond
Prices start from £694 GBPSave up to £7,176 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
2.91ct Radiant
£694 GBP