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Marquise|Lab Grown|IGI

1.63ct I VS2 Marquise Lab Grown Diamond

EX • I/VS2 • IGI LG436045808

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436045808

Diamond specifications and retailer prices

From £1,178 GBP
$1,578 USD
As of October 30, 2026
Save £1,383 GBP (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,298 GBP at Flawless Fine Jewelry · As of October 31, 2026
View at Flawless Fine Jewelry

About this 1.63ct lab-grown marquise diamond

This 1.63ct lab-grown marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG436045808 or 436045808. Listed at 11 retailers as of October 30, 2026, with a 117% 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

1.63
Carat
I
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045808
Dimensions11.45 × 6.37 × 3.87 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
11.45 mm6.37 mm1.63 ctI / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045808
Side View
Table 57.0%Crown 34°Girdle: UNDPavilion 41°Culet: NoneDepth 60.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,298 GBP|Low: £941 GBP|High: £3,953 GBP|Avg: £2,185 GBP
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 8£1,178 GBP
Retailer 5£1,278 GBP
Retailer 12£1,281 GBP
Retailer 13£1,319 GBP
Retailer 9£1,366 GBP
Retailer 7£1,493 GBP
Retailer 3£1,841 GBP
Retailer 10£2,149 GBP
Retailer 6£2,416 GBP
Retailer 11£2,561 GBP
Flawless Fine Jewelry£3,298 GBP
Retailer 2£3,901 GBP
Retailer 4£3,911 GBP

17 data points across 13 retailers

11 retailers£1,178 GBP to £2,561 GBP

B
Cheapest Retailer
-
£1,178 GBP
$1,578 USD
B
Retailer 2
-
£1,281 GBP
$1,717 USD
View
B
Retailer 3
-
£1,319 GBP
$1,767 USD
View
Final sale: no returns
B
Retailer 4
-
£1,366 GBP
$1,830 USD
View
Retailer 5
-
£1,366 GBP
$1,830 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
£1,493 GBP
$2,000 USD
View
B
Retailer 7
-
£2,149 GBP
$2,879 USD
View
B
Retailer 8
-
£2,416 GBP
$3,237 USD
View
B
Retailer 9
-
£2,561 GBP
$3,431 USD
View
Most Expensive
Flawless Fine Jewelry
0DC4634D1 · Oct 31
£3,298 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £1,178 GBPSave up to £1,383 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
1.63ct Marquise
£1,178 GBP