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Radiant|Lab Grown|IGI

3.16ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG744513464

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

Certificate IGI LG744513464

Diamond specifications and retailer prices

From £739 GBP
$990 USD
As of October 30, 2026
Save £5,821 GBP (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,560 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.16ct lab-grown radiant diamond

This 3.16ct 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 LG744513464 or 744513464. Listed at 17 retailers as of October 30, 2026, with prices from £739 to £6,560, a £5,821 spread on the same certified stone. Do Amore Diamonds lists it at £6,560. 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

3.16
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744513464
Dimensions10.13 × 7.23 × 4.94 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
10.13 mm7.23 mm3.16 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744513464
Side View
Table 64.0%Crown 43.9°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 68.3%

Caratlytics Score

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A+
Exceptional
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £6,560 GBP|Low: £739 GBP|High: £7,919 GBP|Avg: £2,784 GBP|-17.2%
Do Amore Diamonds
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
October 31, 2026
Retailer 12£739 GBP
Retailer 3£934 GBP
Retailer 11£992 GBP
Retailer 9£1,037 GBP
Retailer 2£1,119 GBP
Retailer 17£1,581 GBP
Retailer 16£1,773 GBP
Retailer 4£1,786 GBP
Retailer 13£1,802 GBP
Retailer 10£1,846 GBP
Retailer 15£2,446 GBP
Retailer 5£2,530 GBP
Retailer 14£3,225 GBP
Retailer 6£4,019 GBP
Retailer 7£5,256 GBP
Retailer 8£6,404 GBP
Do Amore Diamonds£6,560 GBP

34 data points across 17 retailers

17 retailers£739 GBP to £6,560 GBP

A+
Cheapest Retailer
-
£739 GBP
$990 USD
A
Retailer 2
-
£934 GBP
$1,252 USD
View
A
Retailer 3
-
£992 GBP
$1,329 USD
View
A
Retailer 4
-
£1,037 GBP
$1,390 USD
View
Final sale: no returns
A
Retailer 5
-
£1,119 GBP
$1,500 USD
View
A
Retailer 6
-
£1,581 GBP
$2,119 USD
View
A
Retailer 7
-
£1,773 GBP
$2,375 USD
View
Retailer 8
-
£1,786 GBP
€2,279 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
£1,802 GBP
$2,414 USD
View
A
Retailer 10
-
£1,846 GBP
$2,474 USD
View
A
Retailer 11
-
£2,446 GBP
$3,277 USD
View
Retailer 12
-
£2,530 GBP
A$5,216 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£3,225 GBP
View
Retailer 14
-
£4,019 GBP
$5,385 USD
View
Price last confirmed 12 days ago
Retailer 15
-
£5,256 GBP
A$10,835 AUD
View
Price last confirmed 22 days ago
B
Retailer 16
-
£6,404 GBP
$8,580 USD
View
Most Expensive
B
Do Amore Diamonds
27-11CF91F27 · Oct 31
£6,560 GBP
$8,790 USD
View
16 more retailers have this diamond
Prices start from £739 GBPSave up to £5,821 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+
3.16ct Radiant
£739 GBP