CaratHunter
Plans
Marquise|Lab Grown|IGI

1.09ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG689562578

Shape and cutting style on the report: Marquise modified brilliant

Certificate IGI LG689562578

Diamond specifications and retailer prices

From $254 USD
As of October 30, 2026
Save $1,236 USD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,490 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown marquise diamond

This 1.09ct 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 LG689562578 or 689562578. Listed at 22 retailers as of October 30, 2026, with prices from $254 to $1,490, a $1,236 spread on the same certified stone. Brilliant Earth lists it at $1,490. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562578
Dimensions9.73 × 5.08 × 3.34 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm5.08 mm1.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562578
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 32.2°Culet: NoneDepth 65.7%

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 30
Current: $1,490 USD|Low: $254 USD|High: $1,840 USD|Avg: $788 USD|-19.0%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 4$254 USD
Retailer 8$284 USD
Retailer 12$295 USD
Retailer 19$315 USD
Retailer 21$315 USD
Retailer 10$425 USD
Retailer 3$475 USD
Retailer 18$540 USD
Retailer 2$544 USD
Retailer 5$561 USD
Retailer 13$600 USD
Retailer 6$658 USD
Retailer 15$749 USD
Retailer 17$766 USD
Retailer 11$926 USD
Retailer 20$1,013 USD
Retailer 7$1,064 USD
Retailer 14$1,105 USD
Retailer 16$1,269 USD
Retailer 9$1,366 USD
Brilliant Earth$1,490 USD

29 data points across 21 retailers

22 retailers$254 USD to $1,490 USD

A
Cheapest Retailer
-
$254 USD
A
Retailer 2
-
$284 USD
View
Final sale: no returns
A
Retailer 3
-
$295 USD
View
Retailer 4
-
$315 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$315 USD
View
A
Retailer 6
-
$425 USD
View
A
Retailer 7
-
$475 USD
View
A
Retailer 8
-
$540 USD
€514 EUR
View
A
Retailer 9
-
$544 USD
ZAR 8,786 ZAR
View
A
Retailer 10
-
$561 USD
View
A
Retailer 11
-
$600 USD
£473 GBP
View
A
Retailer 12
-
$658 USD
View
B+
Retailer 13
-
$749 USD
View
B+
Retailer 14
-
$766 USD
A$1,179 AUD
View
B+
Retailer 15
-
$796 USD
View
B+
Retailer 16
-
$926 USD
SGD 1,251 SGD
View
B+
Retailer 17
-
$1,013 USD
View
B+
Retailer 18
-
$1,064 USD
View
B+
Retailer 19
-
$1,105 USD
View
B+
Retailer 20
-
$1,269 USD
£999 GBP
View
B
Retailer 21
-
$1,366 USD
View
Most Expensive
B
Brilliant Earth
15473140A · Oct 31
$1,490 USD
View
21 more retailers have this diamond
Prices start from $254 USDSave up to $1,236 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
1.09ct Marquise
$254 USD