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Marquise|Lab Grown|IGI

1.00ct I VS1 Marquise Lab Grown Diamond

ID • I/VS1 • IGI LG425067822

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG425067822

Diamond specifications and retailer prices

From $580 USD
As of November 2, 2026
Save $3,912 USD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,492 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG425067822 or 425067822. Listed at 12 retailers as of November 1, 2026, with prices from $580 to $4,492, a $3,912 spread on the same certified stone. MOH London lists it at $4,492. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067822
Dimensions9.49 × 5.30 × 3.42 mm
L/W Ratio1.79
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.49 mm5.30 mm1.00 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425067822
Side View
Table 55.0%Crown 35.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 64.5%

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 2
Current: $4,492 USD|Low: $580 USD|High: $4,547 USD|Avg: $2,201 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2$580 USD
Retailer 6$1,205 USD
Retailer 10$1,311 USD
Retailer 7$1,398 USD
Retailer 3$1,570 USD
Retailer 4$1,957 USD
Retailer 8$2,217 USD
Retailer 5$2,570 USD
Retailer 9$2,621 USD
Retailer 12$2,678 USD
Retailer 11$3,383 USD
MOH London$4,492 USD

21 data points across 12 retailers

12 retailers$580 USD to $4,492 USD

A
Cheapest Retailer
-
$580 USD
B
Retailer 2
-
$1,205 USD
View
B
Retailer 3
-
$1,311 USD
View
Retailer 4
-
$1,398 USD
View
Price last confirmed 20 days ago
B
Retailer 5
-
$1,398 USD
View
B
Retailer 6
-
$1,570 USD
View
B
Retailer 7
-
$2,217 USD
View
B
Retailer 8
-
$2,570 USD
ZAR 41,520 ZAR
View
B
Retailer 9
-
$2,621 USD
View
B
Retailer 10
-
$2,678 USD
View
B
Retailer 11
-
$3,383 USD
£2,664 GBP
View
Most Expensive
B
MOH London
LG425067822 · Nov 1
$4,492 USD
£3,537 GBP
View
11 more retailers have this diamond
Prices start from $580 USDSave up to $3,912 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
1.00ct Marquise
$580 USD