Marquise|Lab Grown|IGI

0.83ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG805672607

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805672607

Diamond specifications and retailer prices

From £134 GBP
HK$1,400 HKD
As of November 1, 2026
Save £381 GBP (74%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £954 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.83ct lab-grown marquise diamond

This 0.83ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805672607 or 805672607. Listed at 18 retailers as of October 28, 2026, with a 285% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.83
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805672607
Dimensions9.54 × 4.89 × 3.15 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.54 mm4.89 mm0.83 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG805672607
Side View
Table 63.0%Crown 36.9°Girdle: MED-STKPavilion 42.2°Culet: NoneDepth 64.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £954 GBP|Low: £88 GBP|High: £973 GBP|Avg: £290 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 25, 2026
Retailer 12£92 GBP
Retailer 4£102 GBP
Retailer 10£107 GBP
Retailer 8£122 GBP
Retailer 14£149 GBP
Retailer 11£165 GBP
Retailer 2£201 GBP
Retailer 16£220 GBP
Retailer 9£223 GBP
Retailer 3£249 GBP
Retailer 15£278 GBP
Retailer 6£293 GBP
Retailer 7£318 GBP
Retailer 5£366 GBP
Retailer 13£515 GBP
MOH London£954 GBP

35 data points across 16 retailers

18 retailers£134 GBP to £515 GBP

Retailer 1
-
£92 GBP
$123 USD
Price last confirmed 9 days ago
Retailer 2
-
£107 GBP
$143 USD
View
Price last confirmed 8 days ago
Retailer 3
-
£122 GBP
$163 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
£134 GBP
HK$1,400 HKD
View
A
Retailer 5
-
£149 GBP
$200 USD
View
Retailer 6
-
£165 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
£186 GBP
$249 USD
View
Price last confirmed 12 days ago
A
Retailer 8
-
£201 GBP
€256 EUR
View
Retailer 9
-
£220 GBP
$295 USD
View
Price last confirmed 15 days ago
Retailer 10
-
£223 GBP
View
Price last confirmed 8 days ago
Retailer 11
-
£249 GBP
View
Price last confirmed 10 days ago
B+
Retailer 12
-
£278 GBP
$373 USD
View
Retailer 13
-
£293 GBP
$393 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£318 GBP
SGD 576 SGD
View
Price last confirmed 9 days ago
Retailer 15
-
£366 GBP
$491 USD
View
Price last confirmed 13 days ago
Retailer 16
-
£515 GBP
$690 USD
View
Price last confirmed 8 days ago
B
Retailer 17
-
£515 GBP
$690 USD
View
Most Expensive
MOH London
LG805672607 · Oct 25
£954 GBP
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from £134 GBPSave up to £381 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
0.83ct Marquise
£134 GBP