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Marquise|Lab Grown|IGI

1.05ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG635454423

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG635454423

Diamond specifications and retailer prices

From €231 EUR
$258 USD
As of October 30, 2026
Save €1,586 EUR (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,817 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.05ct lab-grown marquise diamond

This 1.05ct 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 LG635454423 or 635454423. Listed at 22 retailers as of October 30, 2026, with prices from €231 to €1,817, a €1,586 spread on the same certified stone. Brilliant Earth lists it at €1,817. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635454423
Dimensions10.88 × 5.30 × 3.26 mm
L/W Ratio2.05
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
10.88 mm5.30 mm1.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635454423
Side View
Table 61.0%Crown 32.3°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

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A+
Exceptional
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 30
Current: €542 EUR|Low: €219 EUR|High: €1,234 EUR|Avg: €561 EUR|+2.7%
Retailer 1
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Retailer 21
October 31, 2026
Retailer 21€231 EUR
Retailer 9€258 EUR
Retailer 18€268 EUR
Retailer 5€286 EUR
Retailer 16€286 EUR
Retailer 15€304 EUR
Retailer 10€321 EUR
Retailer 3€385 EUR
Retailer 12€385 EUR
Retailer 4€472 EUR
Retailer 20€492 EUR
Retailer 7€505 EUR
Retailer 1€542 EUR
Retailer 8€554 EUR
Retailer 19€696 EUR
Retailer 11€768 EUR
Retailer 2€879 EUR
Retailer 17€920 EUR
Retailer 13€966 EUR
Retailer 14€1,224 EUR
Retailer 6€1,234 EUR

25 data points across 21 retailers

22 retailers€231 EUR to €1,817 EUR

A+
Cheapest Retailer
-
€231 EUR
$258 USD
A
Retailer 2
-
€258 EUR
$288 USD
View
Final sale: no returns
A
Retailer 3
-
€268 EUR
$299 USD
View
A
Retailer 4
-
€286 EUR
$320 USD
View
A
Retailer 5
-
€286 EUR
$320 USD
View
A
Retailer 6
-
€304 EUR
£267 GBP
View
A
Retailer 7
-
€321 EUR
HK$2,800 HKD
View
A
Retailer 8
-
€385 EUR
$430 USD
View
A
Retailer 9
-
€385 EUR
$430 USD
View
A
Retailer 10
-
€472 EUR
View
A
Retailer 11
-
€492 EUR
ZAR 8,875 ZAR
View
A
Retailer 12
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€505 EUR
$564 USD
View
A
Retailer 13
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€542 EUR
£477 GBP
View
A
Retailer 14
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€554 EUR
$619 USD
View
B+
Retailer 15
-
€696 EUR
A$1,197 AUD
View
B+
Retailer 16
-
€768 EUR
SGD 1,159 SGD
View
B+
Retailer 17
-
€879 EUR
$982 USD
View
B+
Retailer 18
-
€920 EUR
$1,028 USD
View
B+
Retailer 19
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€966 EUR
$1,079 USD
View
Retailer 20
-
€1,224 EUR
£1,077 GBP
View
Price last confirmed 11 days ago
B
Retailer 21
-
€1,234 EUR
$1,378 USD
View
Most Expensive
B
Brilliant Earth
18876745A · Oct 30
€1,817 EUR
$2,030 USD
View
21 more retailers have this diamond
Prices start from €231 EURSave up to €1,586 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+
1.05ct Marquise
€231 EUR