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Marquise|Lab Grown|IGI

1.56ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG739537874

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG739537874

Diamond specifications and retailer prices

From £227 GBP
$304 USD
As of October 30, 2026
Save £1,403 GBP (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,630 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.56ct lab-grown marquise diamond

This 1.56ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG739537874 or 739537874. Listed at 19 retailers as of October 27, 2026, with prices from £227 to £1,630, a £1,403 spread on the same certified stone. Queensmith lists it at £1,630. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739537874
Dimensions12.10 × 6.10 × 3.77 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.10 mm6.10 mm1.56 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739537874
Side View
Table 59.0%Crown 34.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.8%

Caratlytics Score

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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: Oct 30
Current: £499 GBP|Low: £217 GBP|High: £1,657 GBP|Avg: £609 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 14£227 GBP
Retailer 12£263 GBP
Retailer 11£281 GBP
Retailer 15£281 GBP
Retailer 3£316 GBP
Retailer 4£425 GBP
Retailer 6£459 GBP
Retailer 8£484 GBP
Retailer 1£499 GBP
Retailer 7£531 GBP
Retailer 2£863 GBP
Retailer 13£903 GBP
Retailer 10£1,030 GBP
Retailer 5£1,080 GBP
Retailer 9£1,126 GBP

40 data points across 15 retailers

19 retailers£227 GBP to £1,630 GBP

A
Cheapest Retailer
-
£227 GBP
$304 USD
A
Retailer 2
-
£253 GBP
$339 USD
View
Final sale: no returns
A
Retailer 3
-
£263 GBP
$352 USD
View
A
Retailer 4
-
£281 GBP
$376 USD
View
Retailer 5
-
£316 GBP
View
Price last confirmed 17 days ago
A
Retailer 6
-
£425 GBP
$570 USD
View
A
Retailer 7
-
£430 GBP
$576 USD
View
A
Retailer 8
-
£459 GBP
$615 USD
View
A
Retailer 9
-
£484 GBP
ZAR 10,485 ZAR
View
A
Retailer 10
-
£499 GBP
View
B+
Retailer 11
-
£531 GBP
$712 USD
View
B
Retailer 12
-
£863 GBP
$1,156 USD
View
B+
Retailer 13
-
£903 GBP
$1,210 USD
View
B
Retailer 14
-
£938 GBP
$1,257 USD
View
B
Retailer 15
-
£1,030 GBP
$1,380 USD
View
B
Retailer 16
-
£1,080 GBP
$1,447 USD
View
Retailer 17
-
£1,092 GBP
View
Price last confirmed 26 days ago
B
Retailer 18
-
£1,126 GBP
View
Most Expensive
B
Queensmith
LG739537874 · Oct 27
£1,630 GBP
View
18 more retailers have this diamond
Prices start from £227 GBPSave up to £1,403 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
1.56ct Marquise
£227 GBP