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Radiant|Lab Grown|IGI

3.15ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG735564606

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

Certificate IGI LG735564606

Diamond specifications and retailer prices

From £737 GBP
$987 USD
As of October 30, 2026
Save £5,801 GBP (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,538 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.15ct lab-grown radiant diamond

This 3.15ct 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 LG735564606 or 735564606. Listed at 17 retailers as of October 30, 2026, with prices from £737 to £6,538, a £5,801 spread on the same certified stone. Do Amore Diamonds lists it at £6,538. 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

3.15
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735564606
Dimensions10.12 × 7.18 × 5.02 mm
L/W Ratio1.41
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
10.12 mm7.18 mm3.15 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735564606
Side View
Table 65.0%Crown 43.5°Girdle: Slightly ThickPavilion 35.7°Culet: NoneDepth 69.9%

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: £6,538 GBP|Low: £737 GBP|High: £7,896 GBP|Avg: £2,630 GBP|-17.2%
Do Amore Diamonds
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 31, 2026
Retailer 11£737 GBP
Retailer 3£817 GBP
Retailer 13£985 GBP
Retailer 10£989 GBP
Retailer 9£1,034 GBP
Retailer 17£1,391 GBP
Retailer 4£1,567 GBP
Retailer 16£1,767 GBP
Retailer 12£1,790 GBP
Retailer 2£1,841 GBP
Retailer 5£2,216 GBP
Retailer 15£2,439 GBP
Retailer 14£3,215 GBP
Retailer 6£4,075 GBP
Retailer 7£5,251 GBP
Retailer 8£6,389 GBP
Do Amore Diamonds£6,538 GBP

36 data points across 17 retailers

17 retailers£737 GBP to £6,538 GBP

A+
Cheapest Retailer
-
£737 GBP
$987 USD
A
Retailer 2
-
£817 GBP
$1,095 USD
View
A
Retailer 3
-
£985 GBP
$1,320 USD
View
A
Retailer 4
-
£989 GBP
$1,325 USD
View
A
Retailer 5
-
£1,034 GBP
$1,386 USD
View
Final sale: no returns
A
Retailer 6
-
£1,391 GBP
$1,864 USD
View
Retailer 7
-
£1,567 GBP
€1,999 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
£1,767 GBP
$2,368 USD
View
A
Retailer 9
-
£1,790 GBP
$2,399 USD
View
A
Retailer 10
-
£1,841 GBP
$2,467 USD
View
Retailer 11
-
£2,216 GBP
A$4,569 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
£2,439 GBP
$3,268 USD
View
B+
Retailer 13
-
£3,215 GBP
View
Retailer 14
-
£4,075 GBP
$5,460 USD
View
Price last confirmed 12 days ago
Retailer 15
-
£5,251 GBP
A$10,824 AUD
View
Price last confirmed 26 days ago
B
Retailer 16
-
£6,389 GBP
$8,560 USD
View
Most Expensive
B
Do Amore Diamonds
27-646207296 · Oct 30
£6,538 GBP
$8,760 USD
View
16 more retailers have this diamond
Prices start from £737 GBPSave up to £5,801 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+
3.15ct Radiant
£737 GBP