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Marquise|Lab Grown|IGI

1.12ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG839685314

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839685314

Diamond specifications and retailer prices

From €161 EUR
$180 USD
As of October 30, 2026
Save €841 EUR (84%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €1,003 EUR at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.12ct lab-grown marquise diamond

This 1.12ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG839685314 or 839685314. Listed at 3 retailers as of October 26, 2026, with prices from €161 to €1,003, a €841 spread on the same certified stone. Brilliant Earth lists it at €1,003. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.12
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839685314
Dimensions11.28 × 5.44 × 3.28 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm5.44 mm1.12 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839685314
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €1,003 EUR|Low: €161 EUR|High: €1,011 EUR|Avg: €569 EUR|-0.9%
Brilliant Earth
Retailer 2
Retailer 3
October 27, 2026
Retailer 2€161 EUR
Retailer 3€327 EUR
Brilliant Earth€1,003 EUR

23 data points across 3 retailers

3 retailers€161 EUR to €1,003 EUR

A
Cheapest Retailer
-
€161 EUR
$180 USD
Final sale: no returns
A
Retailer 2
-
€327 EUR
£287 GBP
View
Most Expensive
B
Brilliant Earth
21613888A · Oct 26
€1,003 EUR
$1,120 USD
View
2 more retailers have this diamond
Prices start from €161 EURSave up to €841 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
1.12ct Marquise
€161 EUR