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Marquise|Lab Grown|IGI

1.23ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG803613569

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803613569

Diamond specifications and retailer prices

From $249 SGD
As of November 4, 2026
Save $1,171 SGD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,673 SGD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.23ct lab-grown marquise diamond

This 1.23ct 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 LG803613569 or 803613569. Listed at 22 retailers as of November 4, 2026, with a 470% 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

1.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803613569
Dimensions11.37 × 5.61 × 3.45 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.37 mm5.61 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG803613569
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $1,022 SGD|Low: $226 SGD|High: $1,673 SGD|Avg: $701 SGD|-38.9%
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
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Retailer 17
Retailer 18
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Retailer 20
Retailer 21
November 5, 2026
Retailer 10$226 SGD
Retailer 17$249 SGD
Retailer 8$262 SGD
Retailer 14$280 SGD
Retailer 9$310 SGD
Retailer 16$368 SGD
Retailer 5$465 SGD
Retailer 6$473 SGD
Retailer 13$490 SGD
Retailer 20$493 SGD
Retailer 12$598 SGD
Retailer 2$599 SGD
Retailer 21$703 SGD
Retailer 11$899 SGD
Retailer 4$904 SGD
Retailer 3$916 SGD
Retailer 7$952 SGD
Retailer 18$958 SGD
Brilliant Earth$1,022 SGD
Retailer 15$1,290 SGD
Retailer 19$1,420 SGD

31 data points across 21 retailers

22 retailers$249 SGD to $1,420 SGD

Retailer 1
-
$226 SGD
Price last confirmed 13 days ago
A
Retailer 2
-
$249 SGD
View
Final sale: no returns
Retailer 3
-
$262 SGD
View
Price last confirmed 12 days ago
Retailer 4
-
$280 SGD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$310 SGD
View
A
Retailer 6
-
$368 SGD
View
A
Retailer 7
-
$465 SGD
View
Retailer 8
-
$473 SGD
View
Price last confirmed 13 days ago
A
Retailer 9
-
$490 SGD
View
A
Retailer 10
-
$493 SGD
View
Retailer 11
-
$598 SGD
View
Price last confirmed 10 days ago
A
Retailer 12
-
$599 SGD
View
B+
Retailer 13
-
$703 SGD
View
Retailer 14
-
$899 SGD
View
Price last confirmed 11 days ago
B+
Retailer 15
-
$904 SGD
View
B+
Retailer 16
-
$916 SGD
View
Retailer 17
-
$952 SGD
View
Price last confirmed 8 days ago
B+
Retailer 18
-
$958 SGD
View
B+
Retailer 19
-
$1,022 SGD
View
B
Retailer 20
-
$1,290 SGD
View
B
Retailer 21
-
$1,420 SGD
View
Most Expensive
Brilliant Earth
19868300A · Oct 26
$1,673 SGD
$1,310 USD
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $249 SGDSave up to $1,171 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
1.23ct Marquise
$249 SGD