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Marquise|Lab Grown|IGI

0.85ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG691587807

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG691587807

Diamond specifications and retailer prices

From $142 USD
As of October 28, 2026
Save $1,128 USD (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,270 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.85ct lab-grown marquise diamond

This 0.85ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG691587807 or 691587807. Listed at 10 retailers as of October 28, 2026, with prices from $142 to $1,270, a $1,128 spread on the same certified stone. MOH London lists it at $1,270. 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

0.85
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691587807
Dimensions9.81 × 4.99 × 3.10 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.81 mm4.99 mm0.85 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG691587807
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 62.1%

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: $1,270 USD|Low: $142 USD|High: $1,270 USD|Avg: $371 USD
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
October 29, 2026
Retailer 11$142 USD
Retailer 2$161 USD
Retailer 12$170 USD
Retailer 14$179 USD
Retailer 8$220 USD
Retailer 4$250 USD
Retailer 13$293 USD
Retailer 15$311 USD
Retailer 3$311 USD
Retailer 6$392 USD
Retailer 9$393 USD
Retailer 10$487 USD
Retailer 5$640 USD
Retailer 7$700 USD
MOH London$1,270 USD

2 data points across 15 retailers

10 retailers$142 USD to $1,270 USD

A
Cheapest Retailer
-
$142 USD
A
Retailer 2
-
$161 USD
View
A
Retailer 3
-
$179 USD
HK$1,400 HKD
View
A
Retailer 4
-
$220 USD
£173 GBP
View
B+
Retailer 5
-
$293 USD
View
B+
Retailer 6
-
$311 USD
£245 GBP
View
B+
Retailer 7
-
$311 USD
£245 GBP
View
B+
Retailer 8
-
$393 USD
View
B
Retailer 9
-
$487 USD
View
Most Expensive
B
MOH London
LG691587807 · Oct 29
$1,270 USD
£1,000 GBP
View
9 more retailers have this diamond
Prices start from $142 USDSave up to $1,128 USD

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
0.85ct Marquise
$142 USD