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Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG841674554

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841674554

Diamond specifications and retailer prices

From $202 USD
As of November 2, 2026
Save $1,088 USD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,290 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG841674554 or 841674554. Listed at 19 retailers as of October 30, 2026, with prices from $202 to $1,290, a $1,088 spread on the same certified stone. Brilliant Earth lists it at $1,290. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841674554
Dimensions10.90 × 5.59 × 3.45 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm5.59 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841674554
Side View
Table 61.0%Crown 30.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.7%

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: Nov 2
Current: $1,290 USD|Low: $202 USD|High: $1,290 USD|Avg: $565 USD
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 18$202 USD
Retailer 7$225 USD
Retailer 5$250 USD
Retailer 8$250 USD
Retailer 11$334 USD
Retailer 6$338 USD
Retailer 13$432 USD
Retailer 17$436 USD
Retailer 12$459 USD
Retailer 4$466 USD
Retailer 15$605 USD
Retailer 2$610 USD
Retailer 10$760 USD
Retailer 16$787 USD
Retailer 3$857 USD
Retailer 14$1,168 USD
Retailer 9$1,199 USD
Brilliant Earth$1,290 USD

30 data points across 18 retailers

19 retailers$202 USD to $1,290 USD

A
Cheapest Retailer
-
$202 USD
A
Retailer 2
-
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$250 USD
View
Retailer 4
-
$250 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$334 USD
£263 GBP
View
B+
Retailer 6
-
$338 USD
View
A
Retailer 7
-
$432 USD
ZAR 6,971 ZAR
View
A
Retailer 8
-
$436 USD
€415 EUR
View
A
Retailer 9
-
$459 USD
£361 GBP
View
A
Retailer 10
-
$466 USD
View
Retailer 11
-
$532 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$605 USD
View
B+
Retailer 13
-
$610 USD
A$938 AUD
View
Retailer 14
-
$760 USD
View
Price last confirmed 25 days ago
B+
Retailer 15
-
$787 USD
A$1,210 AUD
View
B
Retailer 16
-
$857 USD
View
B
Retailer 17
-
$1,168 USD
£920 GBP
View
B
Retailer 18
-
$1,199 USD
View
Most Expensive
B
Brilliant Earth
21789863A · Oct 30
$1,290 USD
View
18 more retailers have this diamond
Prices start from $202 USDSave up to $1,088 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
$202 USD