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Heart|Lab Grown|IGI

1.25ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG770664488

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG770664488

Diamond specifications and retailer prices

From €182 EUR
$203 USD
As of October 30, 2026
Save €835 EUR (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,016 EUR at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.25ct lab-grown heart diamond

This 1.25ct 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 LG770664488 or 770664488. Listed at 12 retailers as of October 30, 2026, with prices from €182 to €1,016, a €835 spread on the same certified stone. Reve Diamonds lists it at €1,016. 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

1.25
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770664488
Dimensions6.71 × 7.46 × 4.29 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm7.46 mm1.25 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG770664488
Side View
Table 60.0%Crown 33.7°Girdle: MED-STKPavilion 40°Culet: NoneDepth 57.5%

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: €361 EUR|Low: €108 EUR|High: €1,030 EUR|Avg: €549 EUR|+5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 31, 2026
Retailer 2€108 EUR
Retailer 9€182 EUR
Retailer 6€355 EUR
Retailer 1€361 EUR
Retailer 8€379 EUR
Retailer 7€491 EUR
Retailer 5€577 EUR
Retailer 10€697 EUR
Retailer 3€743 EUR
Retailer 4€948 EUR
Reve Diamonds€1,016 EUR

28 data points across 11 retailers

12 retailers€182 EUR to €1,016 EUR

A
Cheapest Retailer
-
€182 EUR
$203 USD
Final sale: no returns
Retailer 2
-
€193 EUR
$216 USD
View
Price last confirmed 33 days ago
Retailer 3
-
€204 EUR
$228 USD
View
Price last confirmed 34 days ago
B+
Retailer 4
-
€355 EUR
$397 USD
View
B+
Retailer 5
-
€361 EUR
£318 GBP
View
B+
Retailer 6
-
€379 EUR
$423 USD
View
B+
Retailer 7
-
€491 EUR
$549 USD
View
B
Retailer 8
-
€577 EUR
$645 USD
View
B
Retailer 9
-
€697 EUR
$779 USD
View
B
Retailer 10
-
€743 EUR
$830 USD
View
Retailer 11
-
€948 EUR
£834 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Reve Diamonds
FA2468553 · Oct 30
€1,016 EUR
$1,136 USD
View
11 more retailers have this diamond
Prices start from €182 EURSave up to €835 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
1.25ct Heart
€182 EUR