CaratHunter
Plans
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
As of November 6, 2026
Save €646 EUR (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €780 EUR at MOH London · As of November 2, 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 13 retailers as of November 2, 2026, with prices from €134 to €780, a €646 spread on the same certified stone. MOH London lists it at €780. 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
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: Nov 6
Current: €780 EUR|Low: €129 EUR|High: €789 EUR|Avg: €347 EUR|-0.1%
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
November 6, 2026
Retailer 11€134 EUR
Retailer 3€156 EUR
Retailer 5€167 EUR
Retailer 12€167 EUR
Retailer 9€217 EUR
Retailer 2€286 EUR
Retailer 14€306 EUR
Retailer 8€324 EUR
Retailer 4€379 EUR
Retailer 6€394 EUR
Retailer 7€412 EUR
Retailer 13€537 EUR
Retailer 10€566 EUR
MOH London€780 EUR

45 data points across 14 retailers

13 retailers€134 EUR to €780 EUR

A
Cheapest Retailer
-
€134 EUR
A
Retailer 2
-
€156 EUR
View
A
Retailer 3
-
€167 EUR
View
Retailer 4
-
€167 EUR
View
Price last confirmed 12 days ago
A
Retailer 5
-
€286 EUR
View
B+
Retailer 6
-
€306 EUR
View
A
Retailer 7
-
€324 EUR
View
B+
Retailer 8
-
€379 EUR
View
B+
Retailer 9
-
€394 EUR
View
B+
Retailer 10
-
€412 EUR
View
B+
Retailer 11
-
€537 EUR
View
B+
Retailer 12
-
€566 EUR
View
Most Expensive
B
MOH London
LG659468456 · Nov 2
€780 EUR
£686 GBP
View
12 more retailers have this diamond
Prices start from €134 EURSave up to €646 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