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Marquise|Lab Grown|IGI

0.70ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436047594

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436047594

Diamond specifications and retailer prices

From £312 GBP
As of November 4, 2026
Save £1,210 GBP (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,522 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 0.7ct lab-grown marquise diamond

This 0.7ct lab-grown marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047594 or 436047594. Listed at 11 retailers as of November 4, 2026, with prices from £312 to £1,522, a £1,210 spread on the same certified stone. MOH London lists it at £1,522. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.70
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047594
Dimensions8.99 × 4.62 × 2.76 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.99 mm4.62 mm0.70 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436047594
Side View
Table 62.5%Crown 34.6°Girdle: ThickPavilion 39.2°Culet: NoneDepth 59.7%

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: £1,522 GBP|Low: £312 GBP|High: £1,668 GBP|Avg: £729 GBP|-0.2%
MOH London
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 5, 2026
Retailer 2£312 GBP
Retailer 10£335 GBP
Retailer 3£374 GBP
Retailer 14£375 GBP
Retailer 7£395 GBP
Retailer 11£415 GBP
Retailer 15£415 GBP
Retailer 4£520 GBP
Retailer 13£652 GBP
Retailer 8£698 GBP
Retailer 5£713 GBP
Retailer 9£1,117 GBP
Retailer 12£1,335 GBP
MOH London£1,522 GBP
Retailer 6£1,668 GBP

23 data points across 15 retailers

11 retailers£312 GBP to £1,522 GBP

A
Cheapest Retailer
-
£312 GBP
B+
Retailer 2
-
£335 GBP
View
B+
Retailer 3
-
£374 GBP
View
Final sale: no returns
B+
Retailer 4
-
£375 GBP
View
B+
Retailer 5
-
£415 GBP
View
Retailer 6
-
£415 GBP
View
Price last confirmed 21 days ago
B
Retailer 7
-
£652 GBP
View
Retailer 8
-
£698 GBP
View
Price last confirmed 12 days ago
B
Retailer 9
-
£1,117 GBP
View
B
Retailer 10
-
£1,335 GBP
View
Most Expensive
B
MOH London
LG436047594 · Nov 5
£1,522 GBP
View
10 more retailers have this diamond
Prices start from £312 GBPSave up to £1,210 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
0.70ct Marquise
£312 GBP