Heart|Lab Grown|IGI

1.21ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG823627082

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG823627082

Diamond specifications and retailer prices

From $243 USD
HK$1,900 HKD
As of November 1, 2026
Save $768 USD (76%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,111 USD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.21ct lab-grown heart diamond

This 1.21ct 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 LG823627082 or 823627082. Listed at 19 retailers as of October 26, 2026, with a 316% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823627082
Dimensions6.76 × 7.20 × 4.34 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.76 mm7.20 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG823627082
Side View
Table 63.0%Crown 36.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $820 USD|Low: $165 USD|High: $1,320 USD|Avg: $529 USD|-37.9%
Retailer 1
Retailer 2
Retailer 3
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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
October 31, 2026
Retailer 5$174 USD
Retailer 6$195 USD
Retailer 4$202 USD
Retailer 8$216 USD
Retailer 10$243 USD
Retailer 16$289 USD
Retailer 11$356 USD
Retailer 2$365 USD
Retailer 3$384 USD
Retailer 17$384 USD
Retailer 15$467 USD
Retailer 13$535 USD
Retailer 7$694 USD
Retailer 12$704 USD
Retailer 14$705 USD
Retailer 9$749 USD
Retailer 1$820 USD
Retailer 18$1,011 USD
Reve Diamonds$1,111 USD

31 data points across 19 retailers

19 retailers$243 USD to $1,011 USD

Retailer 1
-
$174 USD
Price last confirmed 10 days ago
Retailer 2
-
$202 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$216 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$243 USD
HK$1,900 HKD
View
A
Retailer 5
-
$289 USD
£228 GBP
View
A
Retailer 6
-
$356 USD
€339 EUR
View
Retailer 7
-
$365 USD
ZAR 5,899 ZAR
View
Price last confirmed 10 days ago
Retailer 8
-
$384 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$384 USD
£303 GBP
View
B+
Retailer 10
-
$467 USD
View
B+
Retailer 11
-
$535 USD
View
Retailer 12
-
$694 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$704 USD
SGD 951 SGD
View
B
Retailer 14
-
$705 USD
View
B
Retailer 15
-
$730 USD
View
B
Retailer 16
-
$749 USD
View
B
Retailer 17
-
$820 USD
View
B
Retailer 18
-
$1,011 USD
£796 GBP
View
Most Expensive
Reve Diamonds
E9EFEA5CF · Oct 25
$1,111 USD
View
Price last confirmed 8 days ago
18 more retailers have this diamond
Prices start from $243 USDSave up to $768 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
1.21ct Heart
$243 USD