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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 $197 USD
As of October 30, 2026
Save $987 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,184 USD at Reve Diamonds · As of November 1, 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 $197 to $1,184, a $987 spread on the same certified stone. Reve Diamonds lists it at $1,184. 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

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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: $422 USD|Low: $197 USD|High: $1,184 USD|Avg: $575 USD|+2.8%
Retailer 1
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Retailer 18
Reve Diamonds
November 1, 2026
Retailer 18$197 USD
Retailer 5$220 USD
Retailer 16$229 USD
Retailer 3$244 USD
Retailer 4$244 USD
Retailer 12$326 USD
Retailer 1$422 USD
Retailer 6$426 USD
Retailer 14$426 USD
Retailer 13$447 USD
Retailer 9$478 USD
Retailer 8$565 USD
Retailer 15$596 USD
Retailer 2$785 USD
Retailer 17$788 USD
Retailer 10$839 USD
Retailer 7$1,140 USD
Retailer 11$1,142 USD
Reve Diamonds$1,184 USD

36 data points across 19 retailers

18 retailers$197 USD to $1,184 USD

A
Cheapest Retailer
-
$197 USD
A
Retailer 2
-
$220 USD
View
Final sale: no returns
A
Retailer 3
-
$229 USD
View
A
Retailer 4
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$244 USD
View
Retailer 5
-
$244 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$326 USD
£257 GBP
View
A
Retailer 7
-
$422 USD
ZAR 6,813 ZAR
View
A
Retailer 8
-
$426 USD
View
A
Retailer 9
-
$426 USD
€406 EUR
View
B+
Retailer 10
-
$447 USD
£352 GBP
View
B+
Retailer 11
-
$478 USD
View
B+
Retailer 12
-
$565 USD
View
B+
Retailer 13
-
$596 USD
A$917 AUD
View
B
Retailer 14
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$785 USD
View
B
Retailer 15
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$788 USD
View
B
Retailer 16
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$839 USD
View
B
Retailer 17
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$1,142 USD
£899 GBP
View
Most Expensive
B
Reve Diamonds
EF8A55ECE · Nov 1
$1,184 USD
View
17 more retailers have this diamond
Prices start from $197 USDSave up to $987 USD

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
$197 USD