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Marquise|Lab Grown|IGI

3.55ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG797628200

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG797628200

Diamond specifications and retailer prices

From £1,175 GBP
CA$2,187 CAD
As of October 30, 2026
Save £521 GBP (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,696 GBP at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.55ct lab-grown marquise diamond

This 3.55ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG797628200 or 797628200. Listed at 2 retailers as of October 30, 2026, with prices from £1,175 to £1,696, a £521 spread on the same certified stone. The Diamond Guys lists it at £1,696. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.55
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797628200
Dimensions16.40 × 7.91 × 4.84 mm
L/W Ratio2.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.40 mm7.91 mm3.55 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797628200
Side View
Table 60.0%Crown 34.2°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 61.2%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £738 GBP|Low: £275 GBP|High: £3,364 GBP|Avg: £1,497 GBP|+12.9%
Retailer 1
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Retailer 14
The Diamond Guys
September 16, 2026
Retailer 9£281 GBP
Retailer 3£481 GBP
Retailer 8£531 GBP
Retailer 1£738 GBP
Retailer 5£746 GBP
Retailer 11£771 GBP
Retailer 4£962 GBP
Retailer 2£1,175 GBP
Retailer 7£1,319 GBP
Retailer 12£1,672 GBP
The Diamond Guys£1,696 GBP
Retailer 13£1,792 GBP
Retailer 6£2,770 GBP
Retailer 10£3,135 GBP
Retailer 14£3,364 GBP

47 data points across 15 retailers

2 retailers£1,175 GBP to £1,696 GBP

B+
Cheapest Retailer
-
£1,175 GBP
CA$2,187 CAD
Most Expensive
B
The Diamond Guys
1958036850 · Nov 1
£1,696 GBP
$2,272 USD
View
1 more retailer has this diamond
Prices start from £1,175 GBPSave up to £521 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.

B+
3.55ct Marquise
£1,175 GBP