Marquise|Lab Grown|IGI

1.00ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG733535022

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG733535022

Diamond specifications and retailer prices

From $253 USD
As of October 28, 2026
Save $1,407 USD (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,660 USD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

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 LG733535022 or 733535022. Listed at 23 retailers as of October 28, 2026, with a 556% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733535022
Dimensions5.27 × 5.27 × 3.27 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
5.27 mm5.27 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733535022
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
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 28
Current: $1,660 USD|Low: $242 USD|High: $1,750 USD|Avg: $772 USD|-5.1%
Brilliant Earth
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
October 29, 2026
Retailer 4$253 USD
Retailer 11$385 USD
Retailer 15$478 USD
Retailer 13$483 USD
Retailer 3$514 USD
Retailer 9$523 USD
Retailer 16$561 USD
Retailer 6$623 USD
Retailer 14$686 USD
Retailer 7$750 USD
Retailer 5$753 USD
Retailer 2$955 USD
Retailer 8$1,051 USD
Retailer 10$1,132 USD
Retailer 12$1,279 USD
Brilliant Earth$1,660 USD

29 data points across 16 retailers

23 retailers$253 USD to $1,660 USD

Retailer 1
-
$245 USD
Price last confirmed 27 days ago
A
Retailer 2
-
$253 USD
View
Final sale: no returns
Retailer 3
-
$296 USD
View
Price last confirmed 30 days ago
Retailer 4
-
$312 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$316 USD
View
Price last confirmed 26 days ago
A
Retailer 6
-
$385 USD
View
A
Retailer 7
-
$478 USD
€455 EUR
View
A
Retailer 8
-
$483 USD
ZAR 7,806 ZAR
View
A
Retailer 9
-
$514 USD
View
A
Retailer 10
-
$523 USD
£412 GBP
View
A
Retailer 11
-
$561 USD
View
B+
Retailer 12
-
$623 USD
A$958 AUD
View
B+
Retailer 13
-
$686 USD
A$1,056 AUD
View
B+
Retailer 14
-
$753 USD
View
Retailer 15
-
$917 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
$955 USD
View
Retailer 17
-
$1,016 USD
View
Price last confirmed 29 days ago
Retailer 18
-
$1,051 USD
A$1,617 AUD
View
Price last confirmed 21 days ago
Retailer 19
-
$1,064 USD
View
Price last confirmed 53 days ago
B
Retailer 20
-
$1,132 USD
£891 GBP
View
B
Retailer 21
-
$1,279 USD
View
B
Retailer 22
-
$1,660 USD
View
Most Expensive
Brilliant Earth
15851387A · Oct 18
$1,660 USD
View
Price last confirmed 11 days ago
22 more retailers have this diamond
Prices start from $253 USDSave up to $1,407 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
$253 USD