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Marquise|Lab Grown|IGI

1.23ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG756503696

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG756503696

Diamond specifications and retailer prices

From £155 GBP
As of November 4, 2026
Save £1,327 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,482 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG756503696 or 756503696. Listed at 16 retailers as of November 2, 2026, with prices from £155 to £1,482, a £1,327 spread on the same certified stone. Do Amore Diamonds lists it at £1,482. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756503696
Dimensions10.87 × 5.63 × 3.56 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizePointed
Top View
10.87 mm5.63 mm1.23 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756503696
Side View
Table 57.0%Crown 37.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,482 GBP|Low: £150 GBP|High: £1,482 GBP|Avg: £508 GBP
Do Amore Diamonds
Retailer 2
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November 4, 2026
Retailer 9£153 GBP
Retailer 16£155 GBP
Retailer 17£179 GBP
Retailer 6£229 GBP
Retailer 8£258 GBP
Retailer 13£282 GBP
Retailer 5£284 GBP
Retailer 12£330 GBP
Retailer 3£339 GBP
Retailer 11£387 GBP
Retailer 14£429 GBP
Retailer 7£436 GBP
Retailer 22£516 GBP
Retailer 10£570 GBP
Retailer 21£614 GBP
Retailer 4£619 GBP
Retailer 15£659 GBP
Retailer 18£680 GBP
Retailer 2£717 GBP
Retailer 20£852 GBP
Retailer 19£970 GBP
Do Amore Diamonds£1,482 GBP

17 data points across 22 retailers

16 retailers£155 GBP to £1,482 GBP

A
Cheapest Retailer
-
£155 GBP
A
Retailer 2
-
£179 GBP
View
A
Retailer 3
-
£229 GBP
View
B+
Retailer 4
-
£258 GBP
View
A
Retailer 5
-
£282 GBP
View
A
Retailer 6
-
£284 GBP
View
Retailer 7
-
£339 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£436 GBP
View
Retailer 9
-
£516 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£614 GBP
View
B
Retailer 11
-
£619 GBP
View
B
Retailer 12
-
£680 GBP
View
B
Retailer 13
-
£717 GBP
View
B
Retailer 14
-
£852 GBP
View
B
Retailer 15
-
£970 GBP
View
Most Expensive
B
Do Amore Diamonds
27-CB692DF72 · Nov 2
£1,482 GBP
$2,000 USD
View
15 more retailers have this diamond
Prices start from £155 GBPSave up to £1,327 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
1.23ct Marquise
£155 GBP