Cushion|Lab Grown|IGI

0.38ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG680589060

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG680589060

Diamond specifications and retailer prices

From £99 GBP
$132 USD
As of October 16, 2026
6 retailers carry this diamond
Most expensive: £278 GBP at Diamond Heaven · As of October 23, 2026
View at Diamond Heaven

About this 0.38ct lab-grown cushion diamond

This 0.38ct 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 LG680589060 or 680589060. Listed at 6 retailers as of October 16, 2026. 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

0.38
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.3°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680589060
Dimensions4.93 × 3.78 × 2.48 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.93 mm3.78 mm0.38 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG680589060
Side View
Table 61.0%Crown 36.3°Girdle: STK-THKPavilion 34.7°Culet: NoneDepth 65.6%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 16
Current: £278 GBP|Low: £79 GBP|High: £860 GBP|Avg: £259 GBP|+8.8%
Diamond Heaven
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 23, 2026
Retailer 12£84 GBP
Retailer 13£99 GBP
Retailer 3£140 GBP
Retailer 11£180 GBP
Retailer 7£182 GBP
Retailer 10£183 GBP
Retailer 2£194 GBP
Retailer 6£247 GBP
Retailer 5£252 GBP
Diamond Heaven£278 GBP
Retailer 8£292 GBP
Retailer 4£461 GBP
Retailer 9£860 GBP

36 data points across 13 retailers

6 retailers£99 GBP to £278 GBP

Retailer 1
-
£99 GBP
$132 USD
Price last confirmed 15 days ago
Retailer 2
-
£140 GBP
$188 USD
View
Price last confirmed 10 days ago
Retailer 3
-
£180 GBP
$241 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£182 GBP
View
Price last confirmed 10 days ago
Retailer 5
-
£194 GBP
View
Price last confirmed 8 days ago
Most Expensive
Diamond Heaven
0.38SI1DLG609CBFN · Oct 23
£278 GBP
View
Price last confirmed 8 days ago
5 more retailers have this diamond

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.

0.38ct Cushion
£99 GBP