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Marquise|Lab Grown|IGI

1.83ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG678516826

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG678516826

Diamond specifications and retailer prices

From £189 GBP
$253 USD
As of November 2, 2026
Save £1,488 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,677 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.83ct lab-grown marquise diamond

This 1.83ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG678516826 or 678516826. Listed at 12 retailers as of November 2, 2026, with prices from £189 to £1,677, a £1,488 spread on the same certified stone. Do Amore Diamonds lists it at £1,677. 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

1.83
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678516826
Dimensions12.70 × 6.28 × 4.04 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.70 mm6.28 mm1.83 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678516826
Side View
Table 60.0%Crown 36.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 64.3%

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 2
Current: £1,677 GBP|Low: £189 GBP|High: £1,856 GBP|Avg: £835 GBP|-9.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10£189 GBP
Retailer 2£302 GBP
Retailer 12£390 GBP
Retailer 6£391 GBP
Retailer 5£601 GBP
Retailer 8£718 GBP
Retailer 11£830 GBP
Retailer 7£1,036 GBP
Retailer 9£1,110 GBP
Retailer 3£1,125 GBP
Retailer 4£1,188 GBP
Do Amore Diamonds£1,677 GBP

25 data points across 12 retailers

12 retailers£189 GBP to £1,677 GBP

A
Cheapest Retailer
-
£189 GBP
$253 USD
Retailer 2
-
£189 GBP
$253 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£302 GBP
View
B+
Retailer 4
-
£390 GBP
$524 USD
View
B+
Retailer 5
-
£391 GBP
$525 USD
View
A
Retailer 6
-
£601 GBP
A$1,240 AUD
View
B+
Retailer 7
-
£718 GBP
$964 USD
View
Retailer 8
-
£830 GBP
$1,114 USD
View
Price last confirmed 13 days ago
Retailer 9
-
£1,036 GBP
View
Price last confirmed 8 days ago
B
Retailer 10
-
£1,110 GBP
$1,490 USD
View
B
Retailer 11
-
£1,125 GBP
$1,509 USD
View
Most Expensive
B
Do Amore Diamonds
27-A39C3646F · Nov 2
£1,677 GBP
$2,250 USD
View
11 more retailers have this diamond
Prices start from £189 GBPSave up to £1,488 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
1.83ct Marquise
£189 GBP