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Round|Lab Grown|IGI

1.27ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG656402458

Shape and cutting style on the report: Round brilliant

Certificate IGI LG656402458

Diamond specifications and retailer prices

From €134 EUR
As of November 5, 2026
Save €640 EUR (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €774 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG656402458 or 656402458. Listed at 20 retailers as of November 4, 2026, with prices from €134 to €774, a €640 spread on the same certified stone. MOH London lists it at €774. 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

1.27
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656402458
Dimensions7.08 × 7.01 × 4.16 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
7.08 mm7.01 mm1.27 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656402458
Side View
Table 61.0%Crown 32.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.0%

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: €774 EUR|Low: €134 EUR|High: €785 EUR|Avg: €389 EUR|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10€134 EUR
Retailer 12€166 EUR
Retailer 2€282 EUR
Retailer 3€305 EUR
Retailer 7€318 EUR
Retailer 5€321 EUR
Retailer 4€354 EUR
Retailer 8€410 EUR
Retailer 6€414 EUR
Retailer 11€526 EUR
Retailer 9€563 EUR
MOH London€774 EUR

42 data points across 12 retailers

20 retailers€134 EUR to €774 EUR

Retailer 1
-
€134 EUR
Price last confirmed 45 days ago
A
Retailer 2
-
€134 EUR
View
Retailer 3
-
€155 EUR
View
Price last confirmed 45 days ago
Retailer 4
-
€164 EUR
View
Price last confirmed 45 days ago
Retailer 5
-
€166 EUR
View
Price last confirmed 12 days ago
A
Retailer 6
-
€166 EUR
View
A
Retailer 7
-
€282 EUR
View
B+
Retailer 8
-
€305 EUR
View
Retailer 9
-
€318 EUR
View
Price last confirmed 8 days ago
A
Retailer 10
-
€321 EUR
View
A
Retailer 11
-
€354 EUR
View
B+
Retailer 12
-
€392 EUR
View
B+
Retailer 13
-
€410 EUR
View
B+
Retailer 14
-
€414 EUR
View
Retailer 15
-
€423 EUR
View
Price last confirmed 47 days ago
B
Retailer 16
-
€526 EUR
View
B
Retailer 17
-
€534 EUR
View
Retailer 18
-
€534 EUR
View
Price last confirmed 46 days ago
B+
Retailer 19
-
€563 EUR
View
Most Expensive
B
MOH London
LG656402458 · Nov 4
€774 EUR
£684 GBP
View
19 more retailers have this diamond
Prices start from €134 EURSave up to €640 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
1.27ct Round
€134 EUR