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Marquise|Lab Grown|IGI

1.05ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG818645863

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818645863

Diamond specifications and retailer prices

From €192 EUR
$215 USD
As of October 30, 2026
Save €1,105 EUR (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,298 EUR at Brilliant Earth · As of October 31, 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 LG818645863 or 818645863. Listed at 22 retailers as of October 30, 2026, with prices from €192 to €1,298, a €1,105 spread on the same certified stone. Brilliant Earth lists it at €1,298. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818645863
Dimensions9.93 × 5.34 × 3.35 mm
L/W Ratio1.86
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
9.93 mm5.34 mm1.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818645863
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 62.7%

Caratlytics Score

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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 30
Current: €1,298 EUR|Low: €192 EUR|High: €1,593 EUR|Avg: €614 EUR|-18.5%
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
November 1, 2026
Retailer 5€192 EUR
Retailer 6€216 EUR
Retailer 14€239 EUR
Retailer 17€239 EUR
Retailer 7€322 EUR
Retailer 11€410 EUR
Retailer 16€417 EUR
Retailer 2€442 EUR
Retailer 3€541 EUR
Retailer 9€542 EUR
Retailer 12€584 EUR
Retailer 10€584 EUR
Retailer 15€767 EUR
Retailer 4€815 EUR
Retailer 13€958 EUR
Retailer 8€1,111 EUR
Brilliant Earth€1,298 EUR

42 data points across 17 retailers

22 retailers€192 EUR to €1,298 EUR

A
Cheapest Retailer
-
€192 EUR
$215 USD
Retailer 2
-
€200 EUR
$223 USD
View
Price last confirmed 24 days ago
A
Retailer 3
-
€216 EUR
$241 USD
View
Final sale: no returns
Retailer 4
-
€232 EUR
$259 USD
View
Price last confirmed 33 days ago
Retailer 5
-
€239 EUR
$267 USD
View
Price last confirmed 7 days ago
A
Retailer 6
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€239 EUR
$267 USD
View
Retailer 7
-
€244 EUR
$273 USD
View
Price last confirmed 37 days ago
Retailer 8
-
€248 EUR
$277 USD
View
Price last confirmed 29 days ago
Retailer 9
-
€286 EUR
HK$2,500 HKD
View
Price last confirmed 58 days ago
A
Retailer 10
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€322 EUR
$360 USD
View
A
Retailer 11
-
€410 EUR
ZAR 7,401 ZAR
View
A
Retailer 12
-
€417 EUR
View
A
Retailer 13
-
€442 EUR
£389 GBP
View
A
Retailer 14
-
€541 EUR
$604 USD
View
B+
Retailer 15
-
€584 EUR
A$1,003 AUD
View
B+
Retailer 16
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€584 EUR
$652 USD
View
B+
Retailer 17
-
€767 EUR
$857 USD
View
Retailer 18
-
€796 EUR
$889 USD
View
Price last confirmed 31 days ago
B+
Retailer 19
-
€815 EUR
$910 USD
View
B+
Retailer 20
-
€958 EUR
£843 GBP
View
B
Retailer 21
-
€1,111 EUR
$1,242 USD
View
Most Expensive
B
Brilliant Earth
20960580A · Oct 31
€1,298 EUR
$1,450 USD
View
21 more retailers have this diamond
Prices start from €192 EURSave up to €1,105 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
€192 EUR