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 $369 SGD
$288 USD
As of October 23, 2026
Save $2,233 SGD (86%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,603 SGD 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 $369 to $2,603, a $2,233 spread on the same certified stone. Brilliant Earth lists it at $2,603. 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
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: $2,603 SGD|Low: $362 SGD|High: $2,962 SGD|Avg: $1,113 SGD|-12.1%
Brilliant Earth
Retailer 2
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Retailer 24
October 27, 2026
Retailer 4$369 SGD
Retailer 17$413 SGD
Retailer 23$428 SGD
Retailer 5$458 SGD
Retailer 22$509 SGD
Retailer 13$536 SGD
Retailer 24$660 SGD
Retailer 2$718 SGD
Retailer 7$751 SGD
Retailer 21$774 SGD
Retailer 18$804 SGD
Retailer 9$809 SGD
Retailer 11$954 SGD
Retailer 20$1,074 SGD
Retailer 6$1,174 SGD
Retailer 14$1,469 SGD
Retailer 3$1,471 SGD
Retailer 16$1,533 SGD
Retailer 12$1,759 SGD
Retailer 15$1,778 SGD
Retailer 19$1,835 SGD
Retailer 10$1,889 SGD
Retailer 8$1,912 SGD
Brilliant Earth$2,603 SGD

25 data points across 24 retailers

26 retailers$369 SGD to $2,603 SGD

A
Cheapest Retailer
-
$369 SGD
$288 USD
A
Retailer 2
-
$413 SGD
$322 USD
View
Final sale: no returns
A
Retailer 3
-
$428 SGD
$334 USD
View
A
Retailer 4
-
$458 SGD
$357 USD
View
A
Retailer 5
-
$509 SGD
HK$3,100 HKD
View
A
Retailer 6
-
$536 SGD
£329 GBP
View
A
Retailer 7
-
$660 SGD
$515 USD
View
A
Retailer 8
-
$718 SGD
€533 EUR
View
A
Retailer 9
-
$751 SGD
$586 USD
View
A
Retailer 10
-
$774 SGD
ZAR 9,748 ZAR
View
A
Retailer 11
-
$804 SGD
£494 GBP
View
A
Retailer 12
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$809 SGD
$631 USD
View
A
Retailer 13
-
$848 SGD
A$1,018 AUD
View
A
Retailer 14
-
$954 SGD
$744 USD
View
B+
Retailer 15
-
$1,074 SGD
A$1,289 AUD
View
B+
Retailer 16
-
$1,174 SGD
$916 USD
View
B+
Retailer 17
-
$1,469 SGD
View
B+
Retailer 18
-
$1,471 SGD
$1,147 USD
View
B+
Retailer 19
-
$1,533 SGD
$1,196 USD
View
B+
Retailer 20
-
$1,540 SGD
A$1,848 AUD
View
Price last confirmed 28 days ago
B
Retailer 21
-
$1,759 SGD
$1,372 USD
View
B
Retailer 22
-
$1,778 SGD
£1,092 GBP
View
Price last confirmed 13 days ago
B
Retailer 23
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$1,835 SGD
£1,127 GBP
View
B
Retailer 24
-
$1,889 SGD
$1,474 USD
View
B
Retailer 25
-
$1,912 SGD
$1,491 USD
View
Most Expensive
B
Brilliant Earth
20782702A · Oct 28
$2,603 SGD
$2,030 USD
View
25 more retailers have this diamond
Prices start from $369 SGDSave up to $2,233 SGD

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
$369 SGD