Marquise|Lab Grown|IGI

1.25ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG846656637

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846656637

Diamond specifications and retailer prices

From £182 GBP
HK$1,900 HKD
As of November 1, 2026
Save £586 GBP (76%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £836 GBP at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846656637 or 846656637. Listed at 20 retailers as of October 26, 2026, with a 323% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846656637
Dimensions11.44 × 5.43 × 3.42 mm
L/W Ratio2.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.44 mm5.43 mm1.25 ctG / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG846656637
Side View
Table 58.0%Crown 36°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £413 GBP|Low: £132 GBP|High: £836 GBP|Avg: £387 GBP|-25.9%
Retailer 1
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Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
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Retailer 15
Retailer 16
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Retailer 20
Reve Diamonds
October 31, 2026
Retailer 7£132 GBP
Retailer 8£147 GBP
Retailer 20£153 GBP
Retailer 16£164 GBP
Retailer 13£182 GBP
Retailer 14£201 GBP
Retailer 18£272 GBP
Retailer 10£277 GBP
Retailer 9£292 GBP
Retailer 15£293 GBP
Retailer 2£342 GBP
Retailer 3£350 GBP
Retailer 1£413 GBP
Retailer 17£527 GBP
Retailer 12£530 GBP
Retailer 11£538 GBP
Retailer 6£544 GBP
Retailer 5£567 GBP
Retailer 4£597 GBP
Retailer 19£768 GBP
Reve Diamonds£836 GBP

8 data points across 21 retailers

20 retailers£182 GBP to £768 GBP

Retailer 1
-
£132 GBP
$177 USD
Price last confirmed 9 days ago
Retailer 2
-
£153 GBP
$205 USD
View
Price last confirmed 8 days ago
Retailer 3
-
£164 GBP
$220 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£182 GBP
HK$1,900 HKD
View
A
Retailer 5
-
£201 GBP
View
Retailer 6
-
£272 GBP
€347 EUR
View
Price last confirmed 8 days ago
Retailer 7
-
£277 GBP
ZAR 5,998 ZAR
View
Price last confirmed 10 days ago
Retailer 8
-
£292 GBP
$391 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
£293 GBP
View
A
Retailer 10
-
£342 GBP
$458 USD
View
A
Retailer 11
-
£350 GBP
$469 USD
View
B+
Retailer 12
-
£413 GBP
$553 USD
View
Retailer 13
-
£527 GBP
$706 USD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£530 GBP
$710 USD
View
B+
Retailer 15
-
£538 GBP
SGD 974 SGD
View
B
Retailer 16
-
£544 GBP
$729 USD
View
B
Retailer 17
-
£567 GBP
$760 USD
View
B
Retailer 18
-
£597 GBP
$800 USD
View
B
Retailer 19
-
£768 GBP
View
Most Expensive
Reve Diamonds
167BDF9F3 · Oct 25
£836 GBP
$1,121 USD
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from £182 GBPSave up to £586 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
1.25ct Marquise
£182 GBP