Marquise|Lab Grown|IGI

1.01ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG830660463

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830660463

Diamond specifications and retailer prices

From $171 USD
As of November 1, 2026
Save $849 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,020 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.01ct lab-grown marquise diamond

This 1.01ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG830660463 or 830660463. Listed at 18 retailers as of October 28, 2026, with prices from $171 to $1,020, a $849 spread on the same certified stone. Brilliant Earth lists it at $1,020. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle29.9°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830660463
Dimensions10.12 × 5.22 × 3.31 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.12 mm5.22 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG830660463
Side View
Table 52.0%Crown 29.9°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 63.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,020 USD|Low: $171 USD|High: $1,020 USD|Avg: $475 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 11$171 USD
Retailer 4$227 USD
Retailer 6$258 USD
Retailer 10$322 USD
Retailer 2$331 USD
Retailer 8$343 USD
Retailer 7$361 USD
Retailer 9$645 USD
Retailer 3$665 USD
Retailer 5$888 USD
Brilliant Earth$1,020 USD

38 data points across 11 retailers

18 retailers$171 USD to $1,020 USD

Retailer 1
-
$156 USD
Price last confirmed 25 days ago
A
Retailer 2
-
$171 USD
View
Final sale: no returns
Retailer 3
-
$181 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$194 USD
View
Price last confirmed 22 days ago
Retailer 5
-
$194 USD
View
Price last confirmed 30 days ago
A
Retailer 6
-
$227 USD
£179 GBP
View
B+
Retailer 7
-
$258 USD
View
A
Retailer 8
-
$322 USD
View
A
Retailer 9
-
$331 USD
£261 GBP
View
Retailer 10
-
$332 USD
£261 GBP
View
Price last confirmed 20 days ago
B+
Retailer 11
-
$343 USD
€327 EUR
View
B+
Retailer 12
-
$361 USD
£284 GBP
View
Retailer 13
-
$523 USD
View
Price last confirmed 57 days ago
Retailer 14
-
$622 USD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$645 USD
View
B
Retailer 16
-
$665 USD
View
B
Retailer 17
-
$888 USD
£699 GBP
View
Most Expensive
B
Brilliant Earth
21109744A · Oct 28
$1,020 USD
View
17 more retailers have this diamond
Prices start from $171 USDSave up to $849 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
1.01ct Marquise
$171 USD