CaratHunter
Plans
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 $258 SGD
As of November 4, 2026
Save $1,390 SGD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,648 SGD 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 $258 to $1,648, a $1,390 spread on the same certified stone. Brilliant Earth lists it at $1,648. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,648 SGD|Low: $258 SGD|High: $1,648 SGD|Avg: $735 SGD
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 5, 2026
Retailer 3$258 SGD
Retailer 8$287 SGD
Retailer 6$319 SGD
Retailer 9$319 SGD
Retailer 12$425 SGD
Retailer 7$432 SGD
Retailer 15$551 SGD
Retailer 18$556 SGD
Retailer 2$580 SGD
Retailer 5$595 SGD
Retailer 13$645 SGD
Retailer 16$773 SGD
Retailer 14$778 SGD
Retailer 17$1,004 SGD
Retailer 4$1,093 SGD
Retailer 11$1,488 SGD
Retailer 10$1,530 SGD
Brilliant Earth$1,648 SGD

32 data points across 18 retailers

19 retailers$258 SGD to $1,648 SGD

A
Cheapest Retailer
-
$258 SGD
A
Retailer 2
-
$287 SGD
View
Final sale: no returns
A
Retailer 3
-
$319 SGD
View
Retailer 4
-
$319 SGD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$425 SGD
View
B+
Retailer 6
-
$432 SGD
View
A
Retailer 7
-
$551 SGD
View
Retailer 8
-
$556 SGD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$580 SGD
View
A
Retailer 10
-
$595 SGD
View
A
Retailer 11
-
$645 SGD
View
B+
Retailer 12
-
$773 SGD
View
B+
Retailer 13
-
$778 SGD
View
Retailer 14
-
$971 SGD
View
Price last confirmed 29 days ago
Retailer 15
-
$1,004 SGD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$1,093 SGD
View
B
Retailer 17
-
$1,488 SGD
View
B
Retailer 18
-
$1,530 SGD
View
Most Expensive
B
Brilliant Earth
21789863A · Oct 30
$1,648 SGD
$1,290 USD
View
18 more retailers have this diamond
Prices start from $258 SGDSave up to $1,390 SGD

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
$258 SGD