Heart|Lab Grown|IGI

1.21ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG811608529

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811608529

Diamond specifications and retailer prices

From $243 USD
HK$1,900 HKD
As of November 1, 2026
Save $799 USD (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,129 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 LG811608529 or 811608529. Listed at 18 retailers as of October 26, 2026, with a 329% 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 angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811608529
Dimensions6.94 × 7.29 × 4.36 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.94 mm7.29 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG811608529
Side View
Table 64.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $359 USD|Low: $174 USD|High: $1,320 USD|Avg: $540 USD|-4.2%
Retailer 1
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
Reve Diamonds
November 2, 2026
Retailer 6$180 USD
Retailer 7$200 USD
Retailer 4$208 USD
Retailer 9$223 USD
Retailer 13$243 USD
Retailer 1$359 USD
Retailer 2$377 USD
Retailer 3$395 USD
Retailer 17$399 USD
Retailer 16$469 USD
Retailer 5$470 USD
Retailer 14$554 USD
Retailer 11$709 USD
Retailer 8$716 USD
Retailer 15$732 USD
Retailer 12$740 USD
Retailer 10$770 USD
Retailer 18$1,043 USD
Reve Diamonds$1,129 USD

38 data points across 19 retailers

18 retailers$243 USD to $1,043 USD

Retailer 1
-
$180 USD
Price last confirmed 10 days ago
Retailer 2
-
$208 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$223 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$243 USD
HK$1,900 HKD
View
A
Retailer 5
-
$359 USD
€342 EUR
View
Retailer 6
-
$377 USD
ZAR 6,084 ZAR
View
Price last confirmed 10 days ago
Retailer 7
-
$395 USD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$399 USD
£314 GBP
View
B+
Retailer 9
-
$469 USD
View
B+
Retailer 10
-
$470 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$554 USD
View
B+
Retailer 12
-
$709 USD
SGD 958 SGD
View
Retailer 13
-
$716 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$732 USD
View
B
Retailer 15
-
$740 USD
View
B
Retailer 16
-
$770 USD
View
B
Retailer 17
-
$1,043 USD
£821 GBP
View
Most Expensive
Reve Diamonds
31B8B28C1 · Oct 25
$1,129 USD
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from $243 USDSave up to $799 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