CaratHunter
Plans
Cushion|Lab Grown|IGI

0.91ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG526281751

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG526281751

Diamond specifications and retailer prices

From £617 GBP
$827 USD
As of October 31, 2026
Save £555 GBP (47%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,172 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 0.91ct lab-grown cushion diamond

This 0.91ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526281751 or 526281751. Listed at 3 retailers as of October 31, 2026, with prices from £617 to £1,172, a £555 spread on the same certified stone. Do Amore Diamonds lists it at £1,172. 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

0.91
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526281751
Dimensions6.72 × 5.31 × 3.43 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizeLarge
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
6.72 mm5.31 mm0.91 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526281751
Side View
Table 58.0%Crown 42.1°Girdle: MED-THKPavilion 38.4°Culet: LargeDepth 64.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,172 GBP|Low: £349 GBP|High: £1,172 GBP|Avg: £630 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 5£349 GBP
Retailer 4£362 GBP
Retailer 3£617 GBP
Retailer 2£652 GBP
Do Amore Diamonds£1,172 GBP

14 data points across 5 retailers

3 retailers£617 GBP to £1,172 GBP

B
Cheapest Retailer
-
£617 GBP
$827 USD
B
Retailer 2
-
£652 GBP
€832 EUR
View
Most Expensive
B
Do Amore Diamonds
24-2204-271A · Oct 31
£1,172 GBP
$1,570 USD
View
2 more retailers have this diamond
Prices start from £617 GBPSave up to £555 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
0.91ct Cushion
£617 GBP