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Cushion|Lab Grown|IGI

1.29ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG830628996

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830628996

Diamond specifications and retailer prices

From £164 GBP
As of November 4, 2026
Save £861 GBP (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,025 GBP at Michael Trio · As of November 4, 2026
View at Michael Trio

About this 1.29ct lab-grown cushion diamond

This 1.29ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG830628996 or 830628996. Listed at 16 retailers as of November 4, 2026, with prices from £164 to £1,025, a £861 spread on the same certified stone. Michael Trio lists it at £1,025. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.29
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830628996
Dimensions7.94 × 5.47 × 3.72 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.94 mm5.47 mm1.29 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830628996
Side View
Table 64.0%Crown 37.3°Girdle: MED-STKPavilion 36.2°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 4
Current: £1,025 GBP|Low: £164 GBP|High: £1,043 GBP|Avg: £472 GBP|-1.7%
Michael Trio
Retailer 2
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November 5, 2026
Retailer 10£164 GBP
Retailer 8£186 GBP
Retailer 9£207 GBP
Retailer 11£246 GBP
Retailer 13£298 GBP
Retailer 3£316 GBP
Retailer 12£330 GBP
Retailer 4£422 GBP
Retailer 16£447 GBP
Retailer 7£479 GBP
Retailer 14£617 GBP
Retailer 15£625 GBP
Retailer 6£767 GBP
Retailer 5£779 GBP
Retailer 2£849 GBP
Michael Trio£1,025 GBP

21 data points across 16 retailers

16 retailers£164 GBP to £1,025 GBP

A
Cheapest Retailer
-
£164 GBP
Final sale: no returns
Retailer 2
-
£186 GBP
View
Price last confirmed 11 days ago
A
Retailer 3
-
£207 GBP
View
B+
Retailer 4
-
£246 GBP
View
A
Retailer 5
-
£298 GBP
View
A
Retailer 6
-
£316 GBP
View
A
Retailer 7
-
£330 GBP
View
A
Retailer 8
-
£422 GBP
View
A
Retailer 9
-
£447 GBP
View
B+
Retailer 10
-
£479 GBP
View
B+
Retailer 11
-
£617 GBP
View
B+
Retailer 12
-
£625 GBP
View
Retailer 13
-
£767 GBP
View
Price last confirmed 8 days ago
B
Retailer 14
-
£779 GBP
View
B
Retailer 15
-
£849 GBP
View
Most Expensive
B
Michael Trio
1022767480 · Nov 4
£1,025 GBP
SGD 1,870 SGD
View
15 more retailers have this diamond
Prices start from £164 GBPSave up to £861 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
1.29ct Cushion
£164 GBP