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Heart|Lab Grown|IGI

1.23ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG635421819

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG635421819

Diamond specifications and retailer prices

From €176 EUR
$197 USD
As of October 30, 2026
Save €883 EUR (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,060 EUR at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG635421819 or 635421819. Listed at 18 retailers as of October 30, 2026, with prices from €176 to €1,060, a €883 spread on the same certified stone. Reve Diamonds lists it at €1,060. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635421819
Dimensions7.31 × 6.80 × 4.35 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.31 mm6.80 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635421819
Side View
Table 58.0%Crown 36°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €292 EUR|Low: €176 EUR|High: €1,060 EUR|Avg: €519 EUR|-0.9%
Retailer 1
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
Reve Diamonds
November 1, 2026
Retailer 18€176 EUR
Retailer 5€197 EUR
Retailer 16€205 EUR
Retailer 3€218 EUR
Retailer 4€218 EUR
Retailer 1€292 EUR
Retailer 14€375 EUR
Retailer 6€381 EUR
Retailer 12€382 EUR
Retailer 11€400 EUR
Retailer 9€428 EUR
Retailer 8€506 EUR
Retailer 15€534 EUR
Retailer 2€703 EUR
Retailer 17€705 EUR
Retailer 10€751 EUR
Retailer 7€1,020 EUR
Retailer 13€1,028 EUR
Reve Diamonds€1,060 EUR

36 data points across 19 retailers

18 retailers€176 EUR to €1,060 EUR

A
Cheapest Retailer
-
€176 EUR
$197 USD
A
Retailer 2
-
€197 EUR
$220 USD
View
Final sale: no returns
A
Retailer 3
-
€205 EUR
$229 USD
View
A
Retailer 4
-
€218 EUR
$244 USD
View
A
Retailer 5
-
€218 EUR
$244 USD
View
A
Retailer 6
-
€292 EUR
£257 GBP
View
A
Retailer 7
-
€375 EUR
ZAR 6,776 ZAR
View
A
Retailer 8
-
€381 EUR
$426 USD
View
A
Retailer 9
-
€382 EUR
View
B+
Retailer 10
-
€400 EUR
£352 GBP
View
B+
Retailer 11
-
€428 EUR
$478 USD
View
B+
Retailer 12
-
€506 EUR
$565 USD
View
B+
Retailer 13
-
€534 EUR
A$917 AUD
View
B
Retailer 14
-
€703 EUR
$785 USD
View
B
Retailer 15
-
€705 EUR
$788 USD
View
B
Retailer 16
-
€751 EUR
$839 USD
View
B
Retailer 17
-
€1,028 EUR
£904 GBP
View
Most Expensive
B
Reve Diamonds
EF8A55ECE · Oct 30
€1,060 EUR
$1,184 USD
View
17 more retailers have this diamond
Prices start from €176 EURSave up to €883 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
€176 EUR