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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 $280 AUD
$197 USD
As of October 30, 2026
Save $1,405 AUD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,686 AUD 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 $280 to $1,686, a $1,405 spread on the same certified stone. Reve Diamonds lists it at $1,686. 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
Colour
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: $465 AUD|Low: $280 AUD|High: $1,686 AUD|Avg: $819 AUD|-0.9%
Retailer 1
Retailer 2
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Retailer 11
Retailer 12
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Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 2, 2026
Retailer 18$280 AUD
Retailer 5$313 AUD
Retailer 16$326 AUD
Retailer 3$347 AUD
Retailer 4$347 AUD
Retailer 1$465 AUD
Retailer 12$600 AUD
Retailer 6$606 AUD
Retailer 14$607 AUD
Retailer 11$636 AUD
Retailer 9$680 AUD
Retailer 8$804 AUD
Retailer 15$849 AUD
Retailer 2$1,118 AUD
Retailer 17$1,122 AUD
Retailer 10$1,194 AUD
Retailer 7$1,623 AUD
Retailer 13$1,625 AUD
Reve Diamonds$1,686 AUD

37 data points across 19 retailers

18 retailers$280 AUD to $1,686 AUD

A
Cheapest Retailer
-
$280 AUD
$197 USD
A
Retailer 2
-
$313 AUD
$220 USD
View
Final sale: no returns
A
Retailer 3
-
$326 AUD
$229 USD
View
A
Retailer 4
-
$347 AUD
$244 USD
View
Retailer 5
-
$347 AUD
$244 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$465 AUD
£257 GBP
View
A
Retailer 7
-
$600 AUD
ZAR 6,813 ZAR
View
A
Retailer 8
-
$606 AUD
$426 USD
View
A
Retailer 9
-
$607 AUD
€406 EUR
View
B+
Retailer 10
-
$636 AUD
£352 GBP
View
B+
Retailer 11
-
$680 AUD
$478 USD
View
B+
Retailer 12
-
$804 AUD
$565 USD
View
B+
Retailer 13
-
$849 AUD
View
B
Retailer 14
-
$1,118 AUD
$785 USD
View
B
Retailer 15
-
$1,122 AUD
$788 USD
View
B
Retailer 16
-
$1,194 AUD
$839 USD
View
B
Retailer 17
-
$1,625 AUD
£899 GBP
View
Most Expensive
B
Reve Diamonds
EF8A55ECE · Nov 1
$1,686 AUD
$1,184 USD
View
17 more retailers have this diamond
Prices start from $280 AUDSave up to $1,405 AUD

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
$280 AUD