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Cushion|Lab Grown|IGI

6.34ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG753503625

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

Certificate IGI LG753503625

Diamond specifications and retailer prices

From £6,209 GBP
$8,319 USD
As of November 1, 2026
Save £29,578 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £35,787 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 6.34ct lab-grown cushion diamond

This 6.34ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG753503625 or 753503625. Listed at 15 retailers as of October 31, 2026, with prices from £6,209 to £35,787, a £29,578 spread on the same certified stone. Do Amore Diamonds lists it at £35,787. 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

6.34
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG753503625
Dimensions10.37 × 10.33 × 6.74 mm
L/W Ratio1.00
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
10.37 mm10.33 mm6.34 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG753503625
Side View
Table 64.0%Crown 33.6°Girdle: STK-THKPavilion 37.2°Culet: NoneDepth 65.2%

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: Nov 1
Current: £35,787 GBP|Low: £6,209 GBP|High: £36,996 GBP|Avg: £13,967 GBP|-3.3%
Do Amore 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
November 1, 2026
Retailer 13£6,209 GBP
Retailer 2£7,339 GBP
Retailer 14£7,401 GBP
Retailer 10£7,472 GBP
Retailer 9£7,474 GBP
Retailer 3£7,702 GBP
Retailer 5£8,031 GBP
Retailer 12£13,440 GBP
Retailer 15£13,685 GBP
Retailer 7£13,883 GBP
Retailer 4£14,254 GBP
Retailer 11£15,546 GBP
Retailer 8£16,145 GBP
Retailer 6£25,574 GBP
Do Amore Diamonds£35,787 GBP

41 data points across 15 retailers

15 retailers£6,209 GBP to £35,787 GBP

A
Cheapest Retailer
-
£6,209 GBP
$8,319 USD
A
Retailer 2
-
£7,339 GBP
View
A
Retailer 3
-
£7,401 GBP
$9,916 USD
View
Final sale: no returns
A
Retailer 4
-
£7,472 GBP
$10,011 USD
View
A
Retailer 5
-
£7,474 GBP
$10,015 USD
View
A
Retailer 6
-
£7,702 GBP
$10,320 USD
View
Retailer 7
-
£8,031 GBP
$10,760 USD
View
Price last confirmed 13 days ago
A
Retailer 8
-
£13,440 GBP
View
A
Retailer 9
-
£13,685 GBP
$18,336 USD
View
A
Retailer 10
-
£13,883 GBP
$18,602 USD
View
Retailer 11
-
£14,254 GBP
A$29,382 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£15,546 GBP
$20,830 USD
View
B+
Retailer 13
-
£16,145 GBP
€20,602 EUR
View
B+
Retailer 14
-
£25,574 GBP
$34,266 USD
View
Most Expensive
B
Do Amore Diamonds
27-B6FE92289 · Oct 31
£35,787 GBP
$47,950 USD
View
14 more retailers have this diamond
Prices start from £6,209 GBPSave up to £29,578 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
6.34ct Cushion
£6,209 GBP