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Marquise|Lab Grown|IGI

1.28ct D VVS1 Marquise Lab Grown Diamond

EX • D/VVS1 • IGI LG805640692

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805640692

Diamond specifications and retailer prices

From £178 GBP
$239 USD
As of October 27, 2026
Save £992 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,170 GBP at Brilliant Earth · As of October 28, 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 LG805640692 or 805640692. Listed at 22 retailers as of October 27, 2026, with prices from £178 to £1,170, a £992 spread on the same certified stone. Brilliant Earth lists it at £1,170. 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 angle33.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805640692
Dimensions11.13 × 5.67 × 3.50 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.13 mm5.67 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805640692
Side View
Table 61.0%Crown 33.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.7%

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: Oct 27
Current: £1,170 GBP|Low: £178 GBP|High: £1,170 GBP|Avg: £554 GBP
Brilliant Earth
Retailer 2
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October 28, 2026
Retailer 4£178 GBP
Retailer 14£198 GBP
Retailer 10£206 GBP
Retailer 20£221 GBP
Retailer 23£221 GBP
Retailer 9£298 GBP
Retailer 11£350 GBP
Retailer 17£379 GBP
Retailer 19£381 GBP
Retailer 5£401 GBP
Retailer 13£415 GBP
Retailer 16£464 GBP
Retailer 6£486 GBP
Retailer 18£538 GBP
Retailer 22£709 GBP
Retailer 3£712 GBP
Retailer 7£748 GBP
Retailer 12£768 GBP
Retailer 2£820 GBP
Retailer 15£863 GBP
Retailer 21£885 GBP
Retailer 8£981 GBP
Brilliant Earth£1,170 GBP

28 data points across 23 retailers

22 retailers£178 GBP to £1,170 GBP

A
Cheapest Retailer
-
£178 GBP
$239 USD
A
Retailer 2
-
£206 GBP
$277 USD
View
Retailer 3
-
£221 GBP
$296 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£221 GBP
$296 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£298 GBP
$400 USD
View
Retailer 6
-
£350 GBP
$470 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
£379 GBP
ZAR 8,213 ZAR
View
A
Retailer 8
-
£381 GBP
€487 EUR
View
A
Retailer 9
-
£401 GBP
$538 USD
View
A
Retailer 10
-
£415 GBP
View
B+
Retailer 11
-
£464 GBP
A$958 AUD
View
B+
Retailer 12
-
£486 GBP
$652 USD
View
B+
Retailer 13
-
£538 GBP
A$1,111 AUD
View
Retailer 14
-
£709 GBP
$951 USD
View
Price last confirmed 8 days ago
Retailer 15
-
£712 GBP
$955 USD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
£748 GBP
$1,003 USD
View
B+
Retailer 17
-
£768 GBP
$1,030 USD
View
B+
Retailer 18
-
£820 GBP
$1,100 USD
View
Retailer 19
-
£863 GBP
A$1,782 AUD
View
Price last confirmed 25 days ago
Retailer 20
-
£885 GBP
View
Price last confirmed 7 days ago
B
Retailer 21
-
£981 GBP
$1,317 USD
View
Most Expensive
B
Brilliant Earth
20176319A · Oct 28
£1,170 GBP
$1,570 USD
View
21 more retailers have this diamond
Prices start from £178 GBPSave up to £992 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
1.28ct Marquise
£178 GBP