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Emerald|Lab Grown|IGI

3.45ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG731566851

Shape and cutting style on the report: Emerald cut

Certificate IGI LG731566851

Diamond specifications and retailer prices

From £1,381 GBP
$1,851 USD
As of October 30, 2026
Save £4,873 GBP (78%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £6,254 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.45ct lab-grown emerald diamond

This 3.45ct lab-grown emerald 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 LG731566851 or 731566851. Listed at 26 retailers as of October 29, 2026, with prices from £1,381 to £6,254, a £4,873 spread on the same certified stone. Brilliant Earth lists it at £6,254. 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

3.45
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731566851
Dimensions10.41 × 6.96 × 4.54 mm
L/W Ratio1.50
Culet sizeLarge
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
10.41 mm6.96 mm3.45 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731566851
Side View
Table 65.0%Crown 37°Girdle: Slightly ThickPavilion 39.1°Culet: LargeDepth 65.2%

Caratlytics Score

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A
Excellent
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: £6,254 GBP|Low: £1,326 GBP|High: £6,821 GBP|Avg: £3,483 GBP|-8.3%
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 26£1,381 GBP
Retailer 25£1,502 GBP
Retailer 13£1,546 GBP
Retailer 5£1,602 GBP
Retailer 7£1,728 GBP
Retailer 12£1,748 GBP
Retailer 14£1,949 GBP
Retailer 20£2,184 GBP
Retailer 8£2,418 GBP
Retailer 22£2,557 GBP
Retailer 6£2,695 GBP
Retailer 9£2,882 GBP
Retailer 3£3,003 GBP
Retailer 18£3,321 GBP
Retailer 24£3,624 GBP
Retailer 21£3,720 GBP
Retailer 15£4,192 GBP
Retailer 11£4,318 GBP
Retailer 4£4,415 GBP
Retailer 23£4,600 GBP
Retailer 10£4,822 GBP
Retailer 2£5,395 GBP
Retailer 19£5,613 GBP
Retailer 16£5,652 GBP
Retailer 17£6,191 GBP
Brilliant Earth£6,254 GBP

32 data points across 26 retailers

26 retailers£1,381 GBP to £6,254 GBP

A
Cheapest Retailer
-
£1,381 GBP
$1,851 USD
A
Retailer 2
-
£1,502 GBP
$2,013 USD
View
A
Retailer 3
-
£1,546 GBP
$2,072 USD
View
Final sale: no returns
A
Retailer 4
-
£1,602 GBP
$2,147 USD
View
A
Retailer 5
-
£1,728 GBP
$2,315 USD
View
A
Retailer 6
-
£1,748 GBP
$2,342 USD
View
A
Retailer 7
-
£1,949 GBP
HK$20,400 HKD
View
A
Retailer 8
-
£2,184 GBP
View
A
Retailer 9
-
£2,418 GBP
$3,240 USD
View
A
Retailer 10
-
£2,557 GBP
€3,263 EUR
View
A
Retailer 11
-
£2,695 GBP
$3,611 USD
View
A
Retailer 12
-
£2,882 GBP
$3,862 USD
View
B+
Retailer 13
-
£3,003 GBP
$4,024 USD
View
B+
Retailer 14
-
£3,321 GBP
View
Retailer 15
-
£3,624 GBP
A$7,470 AUD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
£3,720 GBP
ZAR 80,529 ZAR
View
B+
Retailer 17
-
£4,192 GBP
$5,617 USD
View
B+
Retailer 18
-
£4,318 GBP
$5,785 USD
View
Retailer 19
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£4,415 GBP
$5,915 USD
View
Price last confirmed 13 days ago
B+
Retailer 20
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£4,600 GBP
View
B+
Retailer 21
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£4,822 GBP
$6,461 USD
View
B
Retailer 22
-
£5,395 GBP
A$11,121 AUD
View
B
Retailer 23
-
£5,613 GBP
$7,521 USD
View
B
Retailer 24
-
£5,652 GBP
SGD 10,233 SGD
View
B
Retailer 25
-
£6,191 GBP
$8,295 USD
View
Most Expensive
B
Brilliant Earth
15998311A · Oct 29
£6,254 GBP
$8,380 USD
View
25 more retailers have this diamond
Prices start from £1,381 GBPSave up to £4,873 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
3.45ct Emerald
£1,381 GBP