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Cushion|Lab Grown|IGI

3.06ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG803684327

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG803684327

Diamond specifications and retailer prices

From £1,310 GBP
HK$13,600 HKD
As of October 29, 2026
Save £2,669 GBP (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,979 GBP at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 3.06ct lab-grown cushion diamond

This 3.06ct 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 LG803684327 or 803684327. Listed at 8 retailers as of October 27, 2026, with prices from £1,310 to £3,979, a £2,669 spread on the same certified stone. Taylor and Hart lists it at £3,979. 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

3.06
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803684327
Dimensions10.03 × 7.55 × 4.78 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.03 mm7.55 mm3.06 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803684327
Side View
Table 65.0%Crown 34.4°Girdle: MED-STKPavilion 31.3°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A+
Exceptional
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: £1,363 GBP|Low: £1,310 GBP|High: £4,553 GBP|Avg: £2,332 GBP|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
October 29, 2026
Retailer 2£1,310 GBP
Retailer 1£1,363 GBP
Retailer 4£1,590 GBP
Retailer 5£1,790 GBP
Retailer 7£1,805 GBP
Retailer 3£2,251 GBP
Retailer 6£3,672 GBP
Taylor and Hart£3,979 GBP

41 data points across 8 retailers

8 retailers£1,310 GBP to £3,979 GBP

A+
Cheapest Retailer
-
£1,310 GBP
HK$13,600 HKD
A
Retailer 2
-
£1,363 GBP
$1,811 USD
View
A
Retailer 3
-
£1,590 GBP
View
A
Retailer 4
-
£1,790 GBP
€2,265 EUR
View
A
Retailer 5
-
£1,805 GBP
$2,399 USD
View
A
Retailer 6
-
£2,251 GBP
$2,991 USD
View
B+
Retailer 7
-
£3,672 GBP
View
Most Expensive
B+
Taylor and Hart
29VMDOW · Oct 27
£3,979 GBP
$5,287 USD
View
7 more retailers have this diamond
Prices start from £1,310 GBPSave up to £2,669 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+
3.06ct Cushion
£1,310 GBP