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Marquise|Lab Grown|IGI

1.89ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG843667413

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843667413

Diamond specifications and retailer prices

From £174 GBP
$233 USD
As of November 2, 2026
Save £844 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,017 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 1.89ct lab-grown marquise diamond

This 1.89ct 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 top-tier cut grade and certified by IGI LG843667413 or 843667413. Listed at 12 retailers as of November 1, 2026, with prices from £174 to £1,017, a £844 spread on the same certified stone. Rare Carat lists it at £1,017. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843667413
Dimensions12.40 × 6.50 × 4.09 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.40 mm6.50 mm1.89 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843667413
Side View
Table 62.0%Crown 35.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.9%

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: £1,017 GBP|Low: £174 GBP|High: £1,017 GBP|Avg: £575 GBP
Rare Carat
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£174 GBP
Retailer 8£202 GBP
Retailer 5£252 GBP
Retailer 7£359 GBP
Retailer 4£470 GBP
Retailer 2£504 GBP
Retailer 12£694 GBP
Retailer 9£696 GBP
Retailer 3£778 GBP
Retailer 6£864 GBP
Retailer 11£915 GBP
Rare Carat£1,017 GBP

19 data points across 12 retailers

12 retailers£174 GBP to £1,017 GBP

A
Cheapest Retailer
-
£174 GBP
$233 USD
A
Retailer 2
-
£202 GBP
$271 USD
View
A
Retailer 3
-
£252 GBP
View
Retailer 4
-
£359 GBP
€459 EUR
View
Price last confirmed 8 days ago
A
Retailer 5
-
£470 GBP
$631 USD
View
A
Retailer 6
-
£504 GBP
A$1,041 AUD
View
B+
Retailer 7
-
£694 GBP
$931 USD
View
B+
Retailer 8
-
£696 GBP
$934 USD
View
B+
Retailer 9
-
£778 GBP
$1,044 USD
View
B+
Retailer 10
-
£864 GBP
View
B+
Retailer 11
-
£915 GBP
$1,228 USD
View
Most Expensive
B
Rare Carat
LGMQ15-167908 · Nov 1
£1,017 GBP
$1,365 USD
View
11 more retailers have this diamond
Prices start from £174 GBPSave up to £844 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
1.89ct Marquise
£174 GBP