Cushion|Lab Grown|IGI

0.46ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG653417926

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG653417926

Diamond specifications and retailer prices

From £276 GBP
As of October 29, 2026
Save £87 GBP (24%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £520 GBP at Taylor and Hart · As of October 21, 2026
View at Taylor and Hart

About this 0.46ct lab-grown cushion diamond

This 0.46ct lab-grown cushion sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG653417926 or 653417926. Listed at 14 retailers as of October 25, 2026, with a 32% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.46
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653417926
Dimensions5.39 × 4.09 × 2.67 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.39 mm4.09 mm0.46 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653417926
Side View
Table 64.0%Crown 35.9°Girdle: MED-STKPavilion 36.6°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £197 GBP|Low: £59 GBP|High: £1,017 GBP|Avg: £282 GBP|-10.3%
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
Taylor and Hart
October 23, 2026
Retailer 11£61 GBP
Retailer 2£99 GBP
Retailer 3£117 GBP
Retailer 4£164 GBP
Retailer 13£184 GBP
Retailer 1£197 GBP
Retailer 9£210 GBP
Retailer 12£224 GBP
Retailer 7£227 GBP
Retailer 5£290 GBP
Retailer 6£307 GBP
Retailer 10£363 GBP
Taylor and Hart£520 GBP
Retailer 8£1,017 GBP

33 data points across 14 retailers

14 retailers£276 GBP to £363 GBP

Retailer 1
-
£61 GBP
$82 USD
Price last confirmed 9 days ago
Retailer 2
-
£117 GBP
$157 USD
View
Price last confirmed 15 days ago
Retailer 3
-
£164 GBP
$220 USD
View
Price last confirmed 10 days ago
Retailer 4
-
£184 GBP
$247 USD
View
Price last confirmed 10 days ago
Retailer 5
-
£197 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£224 GBP
$300 USD
View
Price last confirmed 9 days ago
Retailer 7
-
£227 GBP
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£276 GBP
View
Retailer 9
-
£290 GBP
View
Price last confirmed 17 days ago
Retailer 10
-
£307 GBP
CA$571 CAD
View
Price last confirmed 9 days ago
B
Retailer 11
-
£363 GBP
$486 USD
View
Retailer 12
-
£520 GBP
$697 USD
View
Price last confirmed 10 days ago
Most Expensive
Taylor and Hart
FL4ZT52 · Oct 21
£520 GBP
$697 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from £276 GBPSave up to £87 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.

B+
0.46ct Cushion
£276 GBP