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Heart|Lab Grown|IGI

5.23ct I SI1 Heart Lab Grown Diamond

EX • I/SI1 • IGI LG634439855

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG634439855

Diamond specifications and retailer prices

From €777 EUR
$868 USD
As of November 1, 2026
Save €5,560 EUR (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €6,337 EUR at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 5.23ct lab-grown heart diamond

This 5.23ct lab-grown heart sits in the over five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG634439855 or 634439855. Listed at 13 retailers as of November 1, 2026, with prices from €777 to €6,337, a €5,560 spread on the same certified stone. Do Amore Diamonds lists it at €6,337. 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

5.23
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634439855
Dimensions10.83 × 12.29 × 6.95 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.83 mm12.29 mm5.23 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634439855
Side View
Table 60.0%Crown 32.9°Girdle: THN-STKPavilion 39.3°Culet: NoneDepth 56.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €6,337 EUR|Low: €626 EUR|High: €6,507 EUR|Avg: €1,986 EUR|-2.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 3€626 EUR
Retailer 2€777 EUR
Retailer 10€799 EUR
Retailer 11€828 EUR
Retailer 7€998 EUR
Retailer 4€1,088 EUR
Retailer 9€1,121 EUR
Retailer 8€1,336 EUR
Retailer 6€1,970 EUR
Retailer 12€3,261 EUR
Retailer 5€3,446 EUR
Do Amore Diamonds€6,337 EUR

20 data points across 12 retailers

13 retailers€777 EUR to €6,337 EUR

Retailer 1
-
€714 EUR
$798 USD
Price last confirmed 24 days ago
B+
Retailer 2
-
€777 EUR
$868 USD
View
B+
Retailer 3
-
€799 EUR
$893 USD
View
Final sale: no returns
Retailer 4
-
€828 EUR
$925 USD
View
Price last confirmed 20 days ago
Retailer 5
-
€828 EUR
$925 USD
View
Price last confirmed 30 days ago
Retailer 6
-
€839 EUR
$937 USD
View
Price last confirmed 35 days ago
B+
Retailer 7
-
€998 EUR
$1,115 USD
View
B+
Retailer 8
-
€1,121 EUR
$1,252 USD
View
Retailer 9
-
€1,336 EUR
$1,493 USD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
€1,970 EUR
$2,201 USD
View
B+
Retailer 11
-
€3,261 EUR
$3,643 USD
View
B+
Retailer 12
-
€3,446 EUR
£3,031 GBP
View
Most Expensive
B
Do Amore Diamonds
27-7E777CB3A · Nov 2
€6,337 EUR
$7,080 USD
View
12 more retailers have this diamond
Prices start from €777 EURSave up to €5,560 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.

B+
5.23ct Heart
€777 EUR