Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

VG • D/VS1 • IGI LG806603879

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG806603879

Diamond specifications and retailer prices

From $213 USD
As of November 4, 2026
Save $952 USD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,778 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG806603879 or 806603879. Listed at 22 retailers as of November 4, 2026, with a 447% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG806603879
Dimensions10.74 × 5.42 × 3.55 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.74 mm5.42 mm1.21 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG806603879
Side View
Table 58.0%Crown 36.5°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $426 USD|Low: $213 USD|High: $1,165 USD|Avg: $649 USD|+3.4%
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
November 4, 2026
Retailer 12$213 USD
Retailer 9$409 USD
Retailer 3$415 USD
Retailer 1$426 USD
Retailer 14$442 USD
Retailer 7$462 USD
Retailer 4$483 USD
Retailer 8$577 USD
Retailer 15$740 USD
Retailer 2$764 USD
Retailer 13$793 USD
Retailer 5$815 USD
Retailer 11$1,080 USD
Retailer 10$1,107 USD
Retailer 6$1,165 USD

43 data points across 15 retailers

22 retailers$213 USD to $1,165 USD

Retailer 1
-
$191 USD
Price last confirmed 27 days ago
A
Retailer 2
-
$213 USD
View
Final sale: no returns
Retailer 3
-
$222 USD
View
Price last confirmed 36 days ago
Retailer 4
-
$234 USD
View
Price last confirmed 40 days ago
Retailer 5
-
$237 USD
View
Price last confirmed 32 days ago
Retailer 6
-
$237 USD
View
Price last confirmed 23 days ago
A
Retailer 7
-
$409 USD
View
A
Retailer 8
-
$415 USD
View
A
Retailer 9
-
$426 USD
View
Retailer 10
-
$442 USD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$462 USD
View
B+
Retailer 12
-
$483 USD
View
B+
Retailer 13
-
$577 USD
View
Retailer 14
-
$740 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$762 USD
View
Price last confirmed 35 days ago
B
Retailer 16
-
$764 USD
View
B
Retailer 17
-
$793 USD
View
B
Retailer 18
-
$815 USD
View
B
Retailer 19
-
$1,080 USD
View
B
Retailer 20
-
$1,107 USD
View
B
Retailer 21
-
$1,165 USD
View
Most Expensive
Queensmith
LG806603879 · Oct 27
$1,778 USD
£1,400 GBP
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from $213 USDSave up to $952 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 Marquise
$213 USD