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Cushion|Lab Grown|IGI

3.00ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG728578046

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG728578046

Diamond specifications and retailer prices

From £1,184 GBP
$1,586 USD
As of October 29, 2026
Save £5,082 GBP (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,604 GBP at Novita Diamonds · As of October 8, 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 LG728578046 or 728578046. Listed at 20 retailers as of October 29, 2026, with a 429% 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 angle33.5°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728578046
Dimensions9.69 × 7.71 × 5.06 mm
L/W Ratio1.26
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
9.69 mm7.71 mm3.00 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728578046
Side View
Table 62.0%Crown 33.5°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 65.6%

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 29
Current: £7,604 GBP|Low: £1,184 GBP|High: £8,374 GBP|Avg: £3,482 GBP|-0.2%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 18£1,184 GBP
Retailer 11£1,388 GBP
Retailer 13£1,388 GBP
Retailer 4£1,490 GBP
Retailer 2£1,730 GBP
Retailer 19£1,979 GBP
Retailer 12£2,024 GBP
Retailer 16£2,188 GBP
Retailer 17£2,847 GBP
Retailer 20£2,957 GBP
Retailer 9£3,034 GBP
Retailer 7£3,350 GBP
Retailer 14£3,787 GBP
Retailer 8£3,836 GBP
Retailer 10£4,097 GBP
Retailer 15£4,313 GBP
Retailer 3£4,314 GBP
Retailer 6£5,471 GBP
Retailer 5£6,265 GBP
Novita Diamonds£7,604 GBP

33 data points across 20 retailers

20 retailers£1,184 GBP to £6,265 GBP

A
Cheapest Retailer
-
£1,184 GBP
$1,586 USD
Final sale: no returns
A
Retailer 2
-
£1,388 GBP
$1,860 USD
View
A
Retailer 3
-
£1,388 GBP
$1,860 USD
View
A
Retailer 4
-
£1,490 GBP
HK$15,600 HKD
View
A
Retailer 5
-
£1,730 GBP
View
A
Retailer 6
-
£1,979 GBP
€2,525 EUR
View
A
Retailer 7
-
£2,024 GBP
$2,712 USD
View
A
Retailer 8
-
£2,188 GBP
$2,932 USD
View
A
Retailer 9
-
£2,847 GBP
ZAR 61,627 ZAR
View
A
Retailer 10
-
£2,957 GBP
View
Retailer 11
-
£3,034 GBP
A$6,254 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£3,350 GBP
$4,488 USD
View
B+
Retailer 13
-
£3,787 GBP
$5,075 USD
View
B+
Retailer 14
-
£3,836 GBP
View
Retailer 15
-
£4,097 GBP
$5,490 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
£4,313 GBP
$5,780 USD
View
B+
Retailer 17
-
£4,314 GBP
SGD 7,812 SGD
View
B
Retailer 18
-
£5,471 GBP
$7,330 USD
View
B
Retailer 19
-
£6,265 GBP
$8,395 USD
View
Most Expensive
Novita Diamonds
cert_728578046 · Oct 8
£7,604 GBP
A$15,675 AUD
View
Price last confirmed 22 days ago
19 more retailers have this diamond
Prices start from £1,184 GBPSave up to £5,082 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
£1,184 GBP