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Heart|Lab Grown|IGI

1.23ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG836617848

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836617848

Diamond specifications and retailer prices

From €291 EUR
$325 USD
As of October 30, 2026
Save €1,607 EUR (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,898 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617848 or 836617848. Listed at 19 retailers as of October 30, 2026, with prices from €291 to €1,898, a €1,607 spread on the same certified stone. Brilliant Earth lists it at €1,898. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617848
Dimensions6.72 × 7.51 × 4.12 mm
L/W Ratio1.12
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.72 mm7.51 mm1.23 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617848
Side View
Table 60.0%Crown 32.1°Girdle: STK-THKPavilion 37.6°Culet: NoneDepth 54.9%

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: €1,898 EUR|Low: €291 EUR|High: €2,318 EUR|Avg: €836 EUR|-18.1%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 10€291 EUR
Retailer 4€337 EUR
Retailer 8€355 EUR
Retailer 17€361 EUR
Retailer 19€361 EUR
Retailer 15€384 EUR
Retailer 3€497 EUR
Retailer 7€581 EUR
Retailer 9€584 EUR
Retailer 13€620 EUR
Retailer 2€645 EUR
Retailer 18€748 EUR
Retailer 12€892 EUR
Retailer 16€1,160 EUR
Retailer 5€1,200 EUR
Retailer 11€1,348 EUR
Retailer 14€1,448 EUR
Retailer 6€1,544 EUR
Brilliant Earth€1,898 EUR

20 data points across 19 retailers

19 retailers€291 EUR to €1,898 EUR

A
Cheapest Retailer
-
€291 EUR
$325 USD
A
Retailer 2
-
€337 EUR
$377 USD
View
A
Retailer 3
-
€355 EUR
$397 USD
View
Final sale: no returns
A
Retailer 4
-
€361 EUR
$403 USD
View
A
Retailer 5
-
€361 EUR
$403 USD
View
Retailer 6
-
€384 EUR
£337 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
€497 EUR
$555 USD
View
A
Retailer 8
-
€581 EUR
$649 USD
View
A
Retailer 9
-
€584 EUR
$653 USD
View
B+
Retailer 10
-
€620 EUR
ZAR 11,191 ZAR
View
B+
Retailer 11
-
€645 EUR
£567 GBP
View
B+
Retailer 12
-
€748 EUR
$836 USD
View
B+
Retailer 13
-
€892 EUR
$996 USD
View
B
Retailer 14
-
€1,160 EUR
$1,296 USD
View
B
Retailer 15
-
€1,200 EUR
$1,341 USD
View
B
Retailer 16
-
€1,348 EUR
SGD 2,035 SGD
View
B
Retailer 17
-
€1,448 EUR
£1,274 GBP
View
B
Retailer 18
-
€1,544 EUR
$1,725 USD
View
Most Expensive
B
Brilliant Earth
21813717A · Oct 31
€1,898 EUR
$2,120 USD
View
18 more retailers have this diamond
Prices start from €291 EURSave up to €1,607 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
1.23ct Heart
€291 EUR