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Cushion|Lab Grown|IGI

1.04ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG844643012

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG844643012

Diamond specifications and retailer prices

From £355 GBP
$476 USD
As of November 1, 2026
Save £1,250 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,605 GBP at Riddles Jewelry · As of October 31, 2026
View at Riddles Jewelry

About this 1.04ct lab-grown cushion diamond

This 1.04ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG844643012 or 844643012. Listed at 17 retailers as of October 31, 2026, with prices from £355 to £1,605, a £1,250 spread on the same certified stone. Riddles Jewelry lists it at £1,605. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.04
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844643012
Dimensions7.55 × 5.33 × 3.46 mm
L/W Ratio1.42
Girdle conditionFaceted
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
7.55 mm5.33 mm1.04 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844643012
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 64.9%

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: £631 GBP|Low: £355 GBP|High: £1,605 GBP|Avg: £865 GBP|+0.4%
Retailer 1
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
Riddles Jewelry
November 1, 2026
Retailer 4£355 GBP
Retailer 15£364 GBP
Retailer 12£418 GBP
Retailer 14£477 GBP
Retailer 9£540 GBP
Retailer 8£560 GBP
Retailer 5£580 GBP
Retailer 11£604 GBP
Retailer 1£631 GBP
Retailer 16£765 GBP
Retailer 13£1,158 GBP
Retailer 7£1,158 GBP
Retailer 2£1,283 GBP
Retailer 6£1,319 GBP
Retailer 10£1,380 GBP
Retailer 3£1,502 GBP
Riddles Jewelry£1,605 GBP

19 data points across 17 retailers

17 retailers£355 GBP to £1,605 GBP

A
Cheapest Retailer
-
£355 GBP
$476 USD
Final sale: no returns
Retailer 2
-
£364 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
£418 GBP
$560 USD
View
A
Retailer 4
-
£477 GBP
$639 USD
View
A
Retailer 5
-
£540 GBP
€689 EUR
View
A
Retailer 6
-
£560 GBP
$750 USD
View
A
Retailer 7
-
£580 GBP
$777 USD
View
A
Retailer 8
-
£604 GBP
ZAR 13,071 ZAR
View
A
Retailer 9
-
£631 GBP
View
B+
Retailer 10
-
£765 GBP
$1,025 USD
View
B
Retailer 11
-
£1,158 GBP
CA$2,155 CAD
View
B
Retailer 12
-
£1,158 GBP
$1,552 USD
View
B
Retailer 13
-
£1,283 GBP
$1,719 USD
View
B
Retailer 14
-
£1,319 GBP
$1,767 USD
View
B
Retailer 15
-
£1,380 GBP
View
B
Retailer 16
-
£1,502 GBP
$2,013 USD
View
Most Expensive
B
Riddles Jewelry
1993598110 · Oct 31
£1,605 GBP
$2,151 USD
View
16 more retailers have this diamond
Prices start from £355 GBPSave up to £1,250 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
1.04ct Cushion
£355 GBP