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Heart|Lab Grown|IGI

12.33ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG602390181

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG602390181

Diamond specifications and retailer prices

From $5,134 USD
As of October 31, 2026
Save $13,876 USD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $19,010 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.33ct lab-grown heart diamond

This 12.33ct lab-grown heart sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG602390181 or 602390181. Listed at 16 retailers as of October 31, 2026, with prices from $5,134 to $19,010, a $13,876 spread on the same certified stone. Taylor and Hart lists it at $19,010. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.33
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602390181
Dimensions14.00 × 15.89 × 9.24 mm
L/W Ratio1.14
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
14.00 mm15.89 mm12.33 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602390181
Side View
Table 63.0%Crown 37.6°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 58.1%

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 31
Current: $10,065 USD|Low: $4,401 USD|High: $19,010 USD|Avg: $8,079 USD|-0.2%
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
Taylor and Hart
November 1, 2026
Retailer 12$4,584 USD
Retailer 2$4,804 USD
Retailer 4$5,134 USD
Retailer 10$5,285 USD
Retailer 13$5,318 USD
Retailer 3$5,400 USD
Retailer 11$6,307 USD
Retailer 15$6,645 USD
Retailer 7$6,730 USD
Retailer 9$8,055 USD
Retailer 14$8,224 USD
Retailer 8$8,231 USD
Retailer 6$8,516 USD
Retailer 1$10,065 USD
Retailer 5$14,779 USD
Taylor and Hart$19,010 USD

22 data points across 16 retailers

16 retailers$5,134 USD to $19,010 USD

Retailer 1
-
$4,584 USD
Price last confirmed 11 days ago
Retailer 2
-
$4,804 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$5,134 USD
View
Final sale: no returns
A
Retailer 4
-
$5,285 USD
View
Retailer 5
-
$5,318 USD
View
Price last confirmed 10 days ago
Retailer 6
-
$5,318 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$5,400 USD
View
B+
Retailer 8
-
$6,307 USD
View
Retailer 9
-
$6,645 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$7,191 USD
View
Price last confirmed 18 days ago
B+
Retailer 11
-
$8,055 USD
View
B
Retailer 12
-
$8,224 USD
View
B+
Retailer 13
-
$8,231 USD
ZAR 132,971 ZAR
View
B
Retailer 14
-
$10,065 USD
A$15,484 AUD
View
B
Retailer 15
-
$14,779 USD
View
Most Expensive
B
Taylor and Hart
6ZMYRM5 · Oct 31
$19,010 USD
View
15 more retailers have this diamond
Prices start from $5,134 USDSave up to $13,876 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
12.33ct Heart
$5,134 USD