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Marquise|Lab Grown|IGI

1.45ct D VVS1 Marquise Lab Grown Diamond

EX • D/VVS1 • IGI LG800679229

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800679229

Diamond specifications and retailer prices

From £341 GBP
As of November 4, 2026
Save £1,385 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,726 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.45ct lab-grown marquise diamond

This 1.45ct lab-grown marquise 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 top-tier cut grade and certified by IGI LG800679229 or 800679229. Listed at 13 retailers as of November 4, 2026, with prices from £341 to £1,726, a £1,385 spread on the same certified stone. Brilliant Earth lists it at £1,726. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800679229
Dimensions11.63 × 5.91 × 3.67 mm
L/W Ratio1.97
Girdle conditionFaceted
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
11.63 mm5.91 mm1.45 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800679229
Side View
Table 61.0%Crown 35.6°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 62.1%

Caratlytics Score

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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: £1,726 GBP|Low: £341 GBP|High: £1,933 GBP|Avg: £943 GBP|-10.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 8£341 GBP
Retailer 9£413 GBP
Retailer 6£517 GBP
Retailer 13£593 GBP
Retailer 3£615 GBP
Retailer 2£621 GBP
Retailer 7£661 GBP
Retailer 10£833 GBP
Retailer 11£975 GBP
Retailer 5£1,090 GBP
Retailer 4£1,100 GBP
Retailer 12£1,440 GBP
Brilliant Earth£1,726 GBP

44 data points across 13 retailers

13 retailers£341 GBP to £1,726 GBP

A
Cheapest Retailer
-
£341 GBP
A
Retailer 2
-
£413 GBP
View
A
Retailer 3
-
£517 GBP
View
Retailer 4
-
£593 GBP
View
Price last confirmed 7 days ago
B+
Retailer 5
-
£615 GBP
View
B+
Retailer 6
-
£621 GBP
View
B+
Retailer 7
-
£661 GBP
View
B+
Retailer 8
-
£833 GBP
View
B
Retailer 9
-
£975 GBP
View
Retailer 10
-
£1,090 GBP
View
Price last confirmed 35 days ago
Retailer 11
-
£1,100 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
£1,440 GBP
View
Most Expensive
B
Brilliant Earth
20788274A · Nov 4
£1,726 GBP
$2,330 USD
View
12 more retailers have this diamond
Prices start from £341 GBPSave up to £1,385 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
1.45ct Marquise
£341 GBP