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Cushion|Lab Grown|IGI

3.00ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG674523385

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG674523385

Diamond specifications and retailer prices

From £985 GBP
$1,320 USD
As of October 31, 2026
Save £6,836 GBP (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £7,822 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3ct lab-grown cushion diamond

This 3ct lab-grown cushion 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 LG674523385 or 674523385. Listed at 21 retailers as of October 31, 2026, with prices from £985 to £7,822, a £6,836 spread on the same certified stone. Do Amore Diamonds lists it at £7,822. 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

3.00
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674523385
Dimensions9.64 × 8.04 × 5.09 mm
L/W Ratio1.20
Girdle conditionFaceted
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
9.64 mm8.04 mm3.00 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674523385
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 63.3%

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 31
Current: £7,822 GBP|Low: £985 GBP|High: £7,971 GBP|Avg: £2,880 GBP
Do Amore Diamonds
Retailer 2
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Retailer 15
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Retailer 17
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Retailer 19
Retailer 20
October 31, 2026
Retailer 8£985 GBP
Retailer 17£1,138 GBP
Retailer 3£1,207 GBP
Retailer 12£1,275 GBP
Retailer 20£1,348 GBP
Retailer 7£1,357 GBP
Retailer 15£1,542 GBP
Retailer 2£1,589 GBP
Retailer 19£1,647 GBP
Retailer 16£2,550 GBP
Retailer 13£2,618 GBP
Retailer 6£2,718 GBP
Retailer 10£2,931 GBP
Retailer 4£3,191 GBP
Retailer 14£3,642 GBP
Retailer 9£3,924 GBP
Retailer 11£3,999 GBP
Retailer 18£4,056 GBP
Retailer 5£5,433 GBP
Do Amore Diamonds£7,822 GBP

39 data points across 20 retailers

21 retailers£985 GBP to £7,822 GBP

A
Cheapest Retailer
-
£985 GBP
$1,320 USD
Final sale: no returns
A
Retailer 2
-
£1,138 GBP
$1,525 USD
View
A
Retailer 3
-
£1,207 GBP
$1,617 USD
View
Retailer 4
-
£1,275 GBP
$1,708 USD
View
Price last confirmed 18 days ago
Retailer 5
-
£1,348 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
£1,357 GBP
HK$14,200 HKD
View
A
Retailer 7
-
£1,542 GBP
$2,066 USD
View
A
Retailer 8
-
£1,589 GBP
View
A
Retailer 9
-
£1,647 GBP
$2,207 USD
View
Retailer 10
-
£2,550 GBP
A$5,256 AUD
View
Price last confirmed 9 days ago
A
Retailer 11
-
£2,618 GBP
ZAR 56,663 ZAR
View
A
Retailer 12
-
£2,718 GBP
View
A
Retailer 13
-
£2,931 GBP
$3,927 USD
View
B+
Retailer 14
-
£3,191 GBP
$4,275 USD
View
B+
Retailer 15
-
£3,642 GBP
View
B+
Retailer 16
-
£3,924 GBP
SGD 7,105 SGD
View
B+
Retailer 17
-
£3,999 GBP
$5,358 USD
View
Retailer 18
-
£4,056 GBP
$5,435 USD
View
Price last confirmed 10 days ago
Retailer 19
-
£4,502 GBP
View
Price last confirmed 15 days ago
B+
Retailer 20
-
£5,433 GBP
$7,280 USD
View
Most Expensive
B
Do Amore Diamonds
27-B30A16E56 · Oct 31
£7,822 GBP
$10,480 USD
View
20 more retailers have this diamond
Prices start from £985 GBPSave up to £6,836 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
3.00ct Cushion
£985 GBP