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Round|Lab Grown|IGI

2.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG778667403

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778667403

Diamond specifications and retailer prices

From €247 EUR
As of November 5, 2026
Save €1,134 EUR (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,381 EUR at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 2.09ct lab-grown round diamond

This 2.09ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778667403 or 778667403. Listed at 16 retailers as of November 5, 2026, with prices from €247 to €1,381, a €1,134 spread on the same certified stone. Brilliant Earth lists it at €1,381. 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

2.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778667403
Dimensions8.28 × 8.23 × 4.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.28 mm8.23 mm2.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778667403
Side View
Table 59.0%Crown 33.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.4%

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: Nov 5
Current: €1,381 EUR|Low: €241 EUR|High: €1,461 EUR|Avg: €657 EUR|-5.5%
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 6, 2026
Retailer 8€247 EUR
Retailer 16€287 EUR
Retailer 5€306 EUR
Retailer 6€306 EUR
Retailer 7€412 EUR
Retailer 3€445 EUR
Retailer 15€445 EUR
Retailer 2€502 EUR
Retailer 10€529 EUR
Retailer 17€584 EUR
Retailer 14€589 EUR
Retailer 4€626 EUR
Retailer 13€791 EUR
Retailer 9€984 EUR
Retailer 12€1,034 EUR
Retailer 11€1,224 EUR
Brilliant Earth€1,381 EUR

44 data points across 17 retailers

16 retailers€247 EUR to €1,381 EUR

A
Cheapest Retailer
-
€247 EUR
A
Retailer 2
-
€287 EUR
View
A
Retailer 3
-
€306 EUR
View
Retailer 4
-
€306 EUR
View
Price last confirmed 12 days ago
B+
Retailer 5
-
€412 EUR
View
A
Retailer 6
-
€445 EUR
View
A
Retailer 7
-
€502 EUR
View
A
Retailer 8
-
€529 EUR
View
A
Retailer 9
-
€584 EUR
View
A
Retailer 10
-
€589 EUR
View
A
Retailer 11
-
€626 EUR
View
B+
Retailer 12
-
€791 EUR
View
B+
Retailer 13
-
€984 EUR
View
B+
Retailer 14
-
€1,034 EUR
View
B
Retailer 15
-
€1,224 EUR
View
Most Expensive
B
Brilliant Earth
18492787A · Nov 5
€1,381 EUR
$1,550 USD
View
15 more retailers have this diamond
Prices start from €247 EURSave up to €1,134 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
2.09ct Round
€247 EUR