CaratHunter
Plans
Marquise|Lab Grown|IGI

1.09ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG778632689

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778632689

Diamond specifications and retailer prices

From €234 EUR
$261 USD
As of October 30, 2026
Save €1,260 EUR (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €1,728 EUR at Brilliant Earth · As of September 24, 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 LG778632689 or 778632689. Listed at 24 retailers as of October 30, 2026, with a 539% 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

1.09
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778632689
Dimensions11.33 × 5.31 × 3.20 mm
L/W Ratio2.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.33 mm5.31 mm1.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778632689
Side View
Table 57.0%Crown 33.3°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 60.3%

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: €553 EUR|Low: €231 EUR|High: €1,242 EUR|Avg: €599 EUR|+3.4%
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
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 5€234 EUR
Retailer 2€270 EUR
Retailer 8€270 EUR
Retailer 19€289 EUR
Retailer 20€289 EUR
Retailer 14€307 EUR
Retailer 12€448 EUR
Retailer 9€482 EUR
Retailer 17€497 EUR
Retailer 7€509 EUR
Retailer 18€514 EUR
Retailer 1€553 EUR
Retailer 6€592 EUR
Retailer 16€704 EUR
Retailer 4€771 EUR
Retailer 3€930 EUR
Retailer 11€976 EUR
Retailer 13€1,024 EUR
Retailer 15€1,166 EUR
Retailer 10€1,242 EUR

27 data points across 20 retailers

24 retailers€234 EUR to €1,494 EUR

A
Cheapest Retailer
-
€234 EUR
$261 USD
A
Retailer 2
-
€270 EUR
$302 USD
View
Final sale: no returns
A
Retailer 3
-
€270 EUR
$302 USD
View
A
Retailer 4
-
€289 EUR
$323 USD
View
A
Retailer 5
-
€289 EUR
$323 USD
View
A
Retailer 6
-
€307 EUR
£270 GBP
View
A
Retailer 7
-
€448 EUR
$500 USD
View
A
Retailer 8
-
€482 EUR
$539 USD
View
A
Retailer 9
-
€497 EUR
ZAR 8,973 ZAR
View
A
Retailer 10
-
€509 EUR
$569 USD
View
A
Retailer 11
-
€514 EUR
View
A
Retailer 12
-
€553 EUR
£487 GBP
View
B+
Retailer 13
-
€592 EUR
$661 USD
View
B+
Retailer 14
-
€704 EUR
A$1,210 AUD
View
B+
Retailer 15
-
€771 EUR
$861 USD
View
B+
Retailer 16
-
€930 EUR
$1,039 USD
View
B
Retailer 17
-
€976 EUR
$1,090 USD
View
Retailer 18
-
€1,024 EUR
A$1,760 AUD
View
Price last confirmed 24 days ago
B
Retailer 19
-
€1,069 EUR
$1,194 USD
View
Retailer 20
-
€1,079 EUR
$1,205 USD
View
Price last confirmed 17 days ago
B
Retailer 21
-
€1,166 EUR
£1,026 GBP
View
B
Retailer 22
-
€1,242 EUR
$1,387 USD
View
B
Retailer 23
-
€1,494 EUR
$1,669 USD
View
Most Expensive
Brilliant Earth
21531701A · Sep 24
€1,728 EUR
$1,930 USD
View
Price last confirmed 37 days ago
23 more retailers have this diamond
Prices start from €234 EURSave up to €1,260 EUR

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
€234 EUR