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Cushion|Lab Grown|IGI

3.00ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG669420671

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG669420671

Diamond specifications and retailer prices

From £1,035 GBP
$1,387 USD
As of October 31, 2026
Save £6,130 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £7,620 GBP at Novita Diamonds · As of October 5, 2026
View at Novita 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 LG669420671 or 669420671. Listed at 21 retailers as of October 31, 2026, with a 592% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669420671
Dimensions8.52 × 8.33 × 5.65 mm
L/W Ratio1.02
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
8.52 mm8.33 mm3.00 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669420671
Side View
Table 60.0%Crown 36.6°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £7,620 GBP|Low: £1,035 GBP|High: £7,620 GBP|Avg: £3,249 GBP|+0.4%
Novita 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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 6£1,035 GBP
Retailer 16£1,127 GBP
Retailer 15£1,175 GBP
Retailer 5£1,318 GBP
Retailer 13£1,499 GBP
Retailer 7£1,560 GBP
Retailer 20£1,632 GBP
Retailer 2£1,659 GBP
Retailer 21£2,398 GBP
Retailer 3£2,491 GBP
Retailer 11£2,739 GBP
Retailer 9£2,758 GBP
Retailer 18£2,959 GBP
Retailer 10£3,462 GBP
Retailer 19£3,668 GBP
Retailer 4£3,802 GBP
Retailer 12£4,056 GBP
Retailer 14£5,433 GBP
Retailer 8£6,328 GBP
Retailer 17£7,165 GBP
Novita Diamonds£7,620 GBP

31 data points across 21 retailers

21 retailers£1,035 GBP to £7,165 GBP

A
Cheapest Retailer
-
£1,035 GBP
$1,387 USD
Final sale: no returns
A
Retailer 2
-
£1,127 GBP
$1,510 USD
View
A
Retailer 3
-
£1,175 GBP
$1,575 USD
View
A
Retailer 4
-
£1,318 GBP
HK$13,800 HKD
View
A
Retailer 5
-
£1,499 GBP
View
A
Retailer 6
-
£1,560 GBP
$2,090 USD
View
A
Retailer 7
-
£1,632 GBP
$2,187 USD
View
A
Retailer 8
-
£1,659 GBP
€2,117 EUR
View
A
Retailer 9
-
£2,398 GBP
ZAR 51,917 ZAR
View
A
Retailer 10
-
£2,491 GBP
View
Retailer 11
-
£2,739 GBP
A$5,646 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
£2,758 GBP
$3,696 USD
View
A
Retailer 13
-
£2,959 GBP
$3,964 USD
View
B+
Retailer 14
-
£3,462 GBP
View
B+
Retailer 15
-
£3,668 GBP
$4,915 USD
View
B+
Retailer 16
-
£3,802 GBP
SGD 6,885 SGD
View
Retailer 17
-
£4,056 GBP
$5,435 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
£5,433 GBP
$7,280 USD
View
B
Retailer 19
-
£6,328 GBP
$8,479 USD
View
B
Retailer 20
-
£7,165 GBP
$9,600 USD
View
Most Expensive
Novita Diamonds
cert_669420671 · Oct 5
£7,620 GBP
A$15,708 AUD
View
Price last confirmed 26 days ago
20 more retailers have this diamond
Prices start from £1,035 GBPSave up to £6,130 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
£1,035 GBP