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Heart|Lab Grown|IGI

1.27ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG659468456

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG659468456

Diamond specifications and retailer prices

From €134 EUR
$150 USD
As of October 30, 2026
Save €649 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €783 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.27ct lab-grown heart diamond

This 1.27ct lab-grown heart 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 LG659468456 or 659468456. Listed at 14 retailers as of October 29, 2026, with prices from €134 to €783, a €649 spread on the same certified stone. MOH London lists it at €783. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659468456
Dimensions7.53 × 6.62 × 4.48 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.53 mm6.62 mm1.27 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659468456
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.5%

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: €783 EUR|Low: €129 EUR|High: €789 EUR|Avg: €348 EUR|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 11€134 EUR
Retailer 3€156 EUR
Retailer 5€166 EUR
Retailer 12€166 EUR
Retailer 9€217 EUR
Retailer 2€290 EUR
Retailer 14€306 EUR
Retailer 8€325 EUR
Retailer 4€379 EUR
Retailer 6€394 EUR
Retailer 7€412 EUR
Retailer 13€536 EUR
Retailer 10€566 EUR
MOH London€783 EUR

42 data points across 14 retailers

14 retailers€134 EUR to €783 EUR

A
Cheapest Retailer
-
€134 EUR
$150 USD
A
Retailer 2
-
€156 EUR
$174 USD
View
A
Retailer 3
-
€166 EUR
$186 USD
View
A
Retailer 4
-
€166 EUR
$186 USD
View
Retailer 5
-
€217 EUR
£191 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
€290 EUR
£255 GBP
View
B+
Retailer 7
-
€306 EUR
$342 USD
View
A
Retailer 8
-
€325 EUR
£286 GBP
View
B+
Retailer 9
-
€379 EUR
$423 USD
View
B+
Retailer 10
-
€394 EUR
$440 USD
View
B+
Retailer 11
-
€412 EUR
A$708 AUD
View
B+
Retailer 12
-
€536 EUR
$599 USD
View
B
Retailer 13
-
€566 EUR
$632 USD
View
Most Expensive
B
MOH London
LG659468456 · Oct 29
€783 EUR
£689 GBP
View
13 more retailers have this diamond
Prices start from €134 EURSave up to €649 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 Heart
€134 EUR