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Marquise|Lab Grown|IGI

1.45ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG778628373

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778628373

Diamond specifications and retailer prices

From $302 SGD
$236 USD
As of October 30, 2026
Save $1,603 SGD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,905 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.45ct lab-grown marquise diamond

This 1.45ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778628373 or 778628373. Listed at 19 retailers as of October 30, 2026, with prices from $302 to $1,905, a $1,603 spread on the same certified stone. Brilliant Earth lists it at $1,905. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778628373
Dimensions11.45 × 5.93 × 3.70 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.45 mm5.93 mm1.45 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778628373
Side View
Table 60.0%Crown 35.7°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 62.4%

Caratlytics Score

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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: Oct 30
Current: $1,905 SGD|Low: $239 SGD|High: $2,467 SGD|Avg: $867 SGD|-22.8%
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
November 1, 2026
Retailer 3$302 SGD
Retailer 11$336 SGD
Retailer 4$375 SGD
Retailer 7$375 SGD
Retailer 6$633 SGD
Retailer 13$643 SGD
Retailer 9$707 SGD
Retailer 10$771 SGD
Retailer 8$789 SGD
Retailer 14$912 SGD
Retailer 16$986 SGD
Retailer 5$1,203 SGD
Retailer 12$1,243 SGD
Retailer 15$1,291 SGD
Retailer 2$1,499 SGD
Brilliant Earth$1,905 SGD

44 data points across 16 retailers

19 retailers$302 SGD to $1,905 SGD

A
Cheapest Retailer
-
$302 SGD
$236 USD
A
Retailer 2
-
$336 SGD
$263 USD
View
Final sale: no returns
A
Retailer 3
-
$350 SGD
$274 USD
View
A
Retailer 4
-
$375 SGD
$293 USD
View
A
Retailer 5
-
$375 SGD
$293 USD
View
A
Retailer 6
-
$633 SGD
$495 USD
View
A
Retailer 7
-
$643 SGD
ZAR 8,121 ZAR
View
A
Retailer 8
-
$707 SGD
£435 GBP
View
A
Retailer 9
-
$771 SGD
A$928 AUD
View
B+
Retailer 10
-
$789 SGD
$617 USD
View
B+
Retailer 11
-
$825 SGD
$645 USD
View
B+
Retailer 12
-
$912 SGD
A$1,098 AUD
View
B+
Retailer 13
-
$986 SGD
$771 USD
View
B+
Retailer 14
-
$1,203 SGD
$941 USD
View
B+
Retailer 15
-
$1,243 SGD
A$1,496 AUD
View
B
Retailer 16
-
$1,269 SGD
$993 USD
View
B
Retailer 17
-
$1,291 SGD
$1,010 USD
View
B
Retailer 18
-
$1,499 SGD
£923 GBP
View
Most Expensive
B
Brilliant Earth
18170094A · Oct 31
$1,905 SGD
$1,490 USD
View
18 more retailers have this diamond
Prices start from $302 SGDSave up to $1,603 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
1.45ct Marquise
$302 SGD