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Marquise|Lab Grown|IGI

1.85ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG821658092

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821658092

Diamond specifications and retailer prices

From $288 USD
As of October 23, 2026
Save $1,742 USD (86%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,030 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 LG821658092 or 821658092. Listed at 26 retailers as of October 23, 2026, with prices from $288 to $2,030, a $1,742 spread on the same certified stone. Brilliant Earth lists it at $2,030. 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
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821658092
Dimensions12.31 × 6.59 × 4.14 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.31 mm6.59 mm1.85 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821658092
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.8%

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 23
Current: $2,030 USD|Low: $282 USD|High: $2,310 USD|Avg: $868 USD|-12.1%
Brilliant Earth
Retailer 2
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Retailer 24
October 27, 2026
Retailer 4$288 USD
Retailer 17$322 USD
Retailer 23$334 USD
Retailer 5$357 USD
Retailer 22$397 USD
Retailer 13$418 USD
Retailer 24$515 USD
Retailer 2$560 USD
Retailer 7$586 USD
Retailer 21$603 USD
Retailer 18$627 USD
Retailer 9$631 USD
Retailer 11$744 USD
Retailer 20$838 USD
Retailer 6$916 USD
Retailer 14$1,146 USD
Retailer 3$1,147 USD
Retailer 16$1,196 USD
Retailer 12$1,372 USD
Retailer 15$1,387 USD
Retailer 19$1,431 USD
Retailer 10$1,474 USD
Retailer 8$1,491 USD
Brilliant Earth$2,030 USD

25 data points across 24 retailers

26 retailers$288 USD to $2,030 USD

A
Cheapest Retailer
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$288 USD
A
Retailer 2
-
$322 USD
View
Final sale: no returns
A
Retailer 3
-
$334 USD
View
A
Retailer 4
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$357 USD
View
A
Retailer 5
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$397 USD
HK$3,100 HKD
View
A
Retailer 6
-
$418 USD
£329 GBP
View
A
Retailer 7
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$515 USD
View
A
Retailer 8
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$560 USD
€533 EUR
View
A
Retailer 9
-
$586 USD
View
A
Retailer 10
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$603 USD
ZAR 9,748 ZAR
View
A
Retailer 11
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$627 USD
£494 GBP
View
A
Retailer 12
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$631 USD
View
A
Retailer 13
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$662 USD
A$1,018 AUD
View
A
Retailer 14
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$744 USD
View
B+
Retailer 15
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$838 USD
A$1,289 AUD
View
B+
Retailer 16
-
$916 USD
View
B+
Retailer 17
-
$1,146 USD
SGD 1,548 SGD
View
B+
Retailer 18
-
$1,147 USD
View
B+
Retailer 19
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$1,196 USD
View
B+
Retailer 20
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$1,201 USD
A$1,848 AUD
View
Price last confirmed 28 days ago
B
Retailer 21
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$1,372 USD
View
B
Retailer 22
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$1,387 USD
£1,092 GBP
View
Price last confirmed 13 days ago
B
Retailer 23
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$1,431 USD
£1,127 GBP
View
B
Retailer 24
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$1,474 USD
View
B
Retailer 25
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$1,491 USD
View
Most Expensive
B
Brilliant Earth
20782702A · Oct 28
$2,030 USD
View
25 more retailers have this diamond
Prices start from $288 USDSave up to $1,742 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
1.85ct Marquise
$288 USD