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Round|Lab Grown|IGI

1.77ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG414059840

Shape and cutting style on the report: Round brilliant

Certificate IGI LG414059840

Diamond specifications and retailer prices

From €886 EUR
$990 USD
As of October 30, 2026
Save €3,418 EUR (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,304 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.77ct lab-grown round diamond

This 1.77ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG414059840 or 414059840. Listed at 10 retailers as of October 29, 2026, with prices from €886 to €4,304, a €3,418 spread on the same certified stone. MOH London lists it at €4,304. 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

1.77
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG414059840
Dimensions7.95 × 7.93 × 4.63 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.95 mm7.93 mm1.77 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG414059840
Side View
Table 59.0%Crown 31.8°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 58.3%

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: €4,304 EUR|Low: €886 EUR|High: €4,338 EUR|Avg: €2,139 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2€886 EUR
Retailer 5€1,293 EUR
Retailer 8€1,406 EUR
Retailer 10€1,446 EUR
Retailer 6€1,499 EUR
Retailer 3€1,651 EUR
Retailer 12€2,047 EUR
Retailer 7€2,365 EUR
Retailer 11€2,720 EUR
Retailer 9€2,810 EUR
Retailer 4€3,355 EUR
MOH London€4,304 EUR

15 data points across 12 retailers

10 retailers€886 EUR to €4,304 EUR

A
Cheapest Retailer
-
€886 EUR
$990 USD
B+
Retailer 2
-
€1,293 EUR
$1,444 USD
View
B+
Retailer 3
-
€1,406 EUR
$1,571 USD
View
B+
Retailer 4
-
€1,446 EUR
$1,616 USD
View
Final sale: no returns
B+
Retailer 5
-
€1,499 EUR
$1,675 USD
View
Retailer 6
-
€1,499 EUR
$1,675 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
€2,365 EUR
$2,642 USD
View
B
Retailer 8
-
€2,720 EUR
$3,039 USD
View
B
Retailer 9
-
€2,810 EUR
$3,139 USD
View
Most Expensive
B
MOH London
LG414059840 · Oct 29
€4,304 EUR
£3,786 GBP
View
9 more retailers have this diamond
Prices start from €886 EURSave up to €3,418 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
1.77ct Round
€886 EUR