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Cushion|Lab Grown|IGI

1.01ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG747513189

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG747513189

Diamond specifications and retailer prices

From £141 GBP
As of November 6, 2026
Save £677 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £818 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG747513189 or 747513189. Listed at 14 retailers as of November 6, 2026, with prices from £141 to £818, a £677 spread on the same certified stone. Reve Diamonds lists it at £818. 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

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747513189
Dimensions6.83 × 5.28 × 3.59 mm
L/W Ratio1.29
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
6.83 mm5.28 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747513189
Side View
Table 61.0%Crown 35.3°Girdle: MED-THKPavilion 41.7°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £301 GBP|Low: £140 GBP|High: £818 GBP|Avg: £382 GBP|+9.8%
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
Reve Diamonds
November 6, 2026
Retailer 2£141 GBP
Retailer 13£157 GBP
Retailer 10£245 GBP
Retailer 6£275 GBP
Retailer 12£280 GBP
Retailer 1£301 GBP
Retailer 5£304 GBP
Retailer 11£337 GBP
Retailer 9£388 GBP
Retailer 7£413 GBP
Retailer 4£448 GBP
Retailer 3£545 GBP
Retailer 8£732 GBP
Reve Diamonds£818 GBP

45 data points across 14 retailers

14 retailers£141 GBP to £818 GBP

A
Cheapest Retailer
-
£141 GBP
Final sale: no returns
Retailer 2
-
£157 GBP
View
Price last confirmed 13 days ago
A
Retailer 3
-
£245 GBP
View
A
Retailer 4
-
£275 GBP
View
A
Retailer 5
-
£280 GBP
View
B+
Retailer 6
-
£301 GBP
View
Retailer 7
-
£304 GBP
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£337 GBP
View
B+
Retailer 9
-
£388 GBP
View
B+
Retailer 10
-
£413 GBP
View
B+
Retailer 11
-
£448 GBP
View
B
Retailer 12
-
£545 GBP
View
B
Retailer 13
-
£732 GBP
View
Most Expensive
B
Reve Diamonds
7BE1E0F5D · Nov 6
£818 GBP
$1,095 USD
View
13 more retailers have this diamond
Prices start from £141 GBPSave up to £677 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
1.01ct Cushion
£141 GBP