Marquise|Lab Grown|IGI

1.00ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG821616177

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821616177

Diamond specifications and retailer prices

From $276 USD
As of October 30, 2026
Save $1,067 USD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,343 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821616177 or 821616177. Listed at 20 retailers as of October 30, 2026, with prices from $276 to $1,343, a $1,067 spread on the same certified stone. Reve Diamonds lists it at $1,343. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821616177
Dimensions10.51 × 5.30 × 3.15 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.51 mm5.30 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821616177
Side View
Table 59.0%Crown 32°Girdle: THN-MEDPavilion 39.4°Culet: NoneDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $582 USD|Low: $235 USD|High: $1,515 USD|Avg: $663 USD|-9.5%
Retailer 1
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
Retailer 16
Retailer 17
Reve Diamonds
October 30, 2026
Retailer 8$247 USD
Retailer 3$276 USD
Retailer 14$306 USD
Retailer 17$306 USD
Retailer 4$346 USD
Retailer 13$412 USD
Retailer 16$507 USD
Retailer 11$526 USD
Retailer 9$530 USD
Retailer 2$568 USD
Retailer 1$582 USD
Retailer 6$639 USD
Retailer 5$824 USD
Retailer 15$984 USD
Retailer 12$988 USD
Retailer 7$1,036 USD
Retailer 10$1,233 USD
Reve Diamonds$1,343 USD

39 data points across 18 retailers

20 retailers$276 USD to $1,343 USD

Retailer 1
-
$247 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$276 USD
View
Final sale: no returns
A
Retailer 3
-
$306 USD
View
A
Retailer 4
-
$306 USD
View
A
Retailer 5
-
$346 USD
HK$2,700 HKD
View
Retailer 6
-
$349 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$369 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$412 USD
View
A
Retailer 9
-
$507 USD
€483 EUR
View
A
Retailer 10
-
$526 USD
ZAR 8,498 ZAR
View
Retailer 11
-
$530 USD
View
Price last confirmed 7 days ago
A
Retailer 12
-
$568 USD
View
A
Retailer 13
-
$582 USD
£458 GBP
View
Retailer 14
-
$639 USD
A$983 AUD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
$824 USD
SGD 1,113 SGD
View
B+
Retailer 16
-
$984 USD
View
B+
Retailer 17
-
$988 USD
View
B
Retailer 18
-
$1,036 USD
View
B
Retailer 19
-
$1,233 USD
£971 GBP
View
Most Expensive
B
Reve Diamonds
07887C887 · Oct 30
$1,343 USD
View
19 more retailers have this diamond
Prices start from $276 USDSave up to $1,067 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
1.00ct Marquise
$276 USD