Marquise|Lab Grown|IGI

1.28ct D VVS1 Marquise Lab Grown Diamond

EX • D/VVS1 • IGI LG833633809

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG833633809

Diamond specifications and retailer prices

From £464 GBP
A$958 AUD
As of November 3, 2026
16 retailers carry this diamond
Most expensive: £1,170 GBP at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.28ct lab-grown marquise diamond

This 1.28ct 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 LG833633809 or 833633809. Listed at 16 retailers as of November 3, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833633809
Dimensions11.35 × 5.62 × 3.45 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.35 mm5.62 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833633809
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £1,170 GBP|Low: £190 GBP|High: £1,170 GBP|Avg: £597 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 9, 2026
Retailer 18£192 GBP
Retailer 8£215 GBP
Retailer 17£238 GBP
Retailer 19£238 GBP
Retailer 14£373 GBP
Retailer 2£397 GBP
Retailer 15£407 GBP
Retailer 5£408 GBP
Retailer 13£443 GBP
Retailer 10£464 GBP
Retailer 6£491 GBP
Retailer 12£596 GBP
Retailer 21£668 GBP
Retailer 20£766 GBP
Retailer 7£805 GBP
Retailer 3£831 GBP
Retailer 9£838 GBP
Retailer 16£863 GBP
Retailer 11£996 GBP
Retailer 4£1,027 GBP
Brilliant Earth£1,170 GBP

20 data points across 21 retailers

16 retailers

Retailer 1
-
£192 GBP
$258 USD
Price last confirmed 25 days ago
Retailer 2
-
£230 GBP
$308 USD
View
Price last confirmed 35 days ago
Retailer 3
-
£238 GBP
$320 USD
View
Price last confirmed 25 days ago
Retailer 4
-
£238 GBP
$320 USD
View
Price last confirmed 26 days ago
Retailer 5
-
£397 GBP
$533 USD
View
Price last confirmed 25 days ago
Retailer 6
-
£407 GBP
ZAR 8,826 ZAR
View
Price last confirmed 25 days ago
B+
Retailer 7
-
£464 GBP
A$958 AUD
View
Retailer 8
-
£596 GBP
A$1,231 AUD
View
Price last confirmed 36 days ago
Retailer 9
-
£668 GBP
$897 USD
View
Price last confirmed 24 days ago
Retailer 10
-
£766 GBP
$1,028 USD
View
Price last confirmed 26 days ago
Retailer 11
-
£805 GBP
$1,080 USD
View
Price last confirmed 25 days ago
Retailer 12
-
£831 GBP
$1,115 USD
View
Price last confirmed 26 days ago
Retailer 13
-
£863 GBP
A$1,782 AUD
View
Price last confirmed 25 days ago
Retailer 14
-
£996 GBP
View
Price last confirmed 28 days ago
Retailer 15
-
£1,027 GBP
$1,379 USD
View
Price last confirmed 25 days ago
Most Expensive
Brilliant Earth
21145779A · Oct 8
£1,170 GBP
$1,570 USD
View
Price last confirmed 25 days ago
15 more retailers have this diamond
Prices start from £464 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+
1.28ct Marquise
£464 GBP