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Marquise|Lab Grown|IGI

1.85ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG778690171

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778690171

Diamond specifications and retailer prices

From £219 GBP
$292 USD
As of October 28, 2026
Save £1,104 GBP (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,324 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 1.85ct lab-grown marquise diamond

This 1.85ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778690171 or 778690171. Listed at 6 retailers as of October 28, 2026, with prices from £219 to £1,324, a £1,104 spread on the same certified stone. Frank Darling lists it at £1,324. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.85
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778690171
Dimensions6.31 × 6.31 × 13.20 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.31 mm6.31 mm1.85 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778690171
Side View
Table 56.0%Crown 34.7°Girdle: ThinPavilion 40.4°Culet: NoneDepth 62.9%

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: Oct 28
Current: £1,324 GBP|Low: £135 GBP|High: £1,324 GBP|Avg: £605 GBP|-0.0%
Frank Darling
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
October 28, 2026
Retailer 5£135 GBP
Retailer 2£219 GBP
Retailer 8£324 GBP
Retailer 14£398 GBP
Retailer 13£404 GBP
Retailer 12£436 GBP
Retailer 11£447 GBP
Retailer 4£552 GBP
Retailer 7£626 GBP
Retailer 6£683 GBP
Retailer 15£825 GBP
Retailer 10£874 GBP
Retailer 9£1,014 GBP
Retailer 3£1,047 GBP
Frank Darling£1,324 GBP

13 data points across 15 retailers

6 retailers£219 GBP to £1,324 GBP

A
Cheapest Retailer
-
£219 GBP
$292 USD
Final sale: no returns
B+
Retailer 2
-
£324 GBP
$432 USD
View
B+
Retailer 3
-
£626 GBP
A$1,283 AUD
View
Price last confirmed 120 days ago
B+
Retailer 4
-
£874 GBP
$1,164 USD
View
B
Retailer 5
-
£1,014 GBP
$1,350 USD
View
Most Expensive
B
Frank Darling
100752819164KD · Oct 29
£1,324 GBP
$1,763 USD
View
5 more retailers have this diamond
Prices start from £219 GBPSave up to £1,104 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
1.85ct Marquise
£219 GBP