Marquise|Lab Grown|IGI

1.30ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG851605435

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851605435

Diamond specifications and retailer prices

From $254 USD
As of October 30, 2026
Save $1,651 USD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,905 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.3ct lab-grown marquise diamond

This 1.3ct 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 LG851605435 or 851605435. Listed at 19 retailers as of October 28, 2026, with prices from $254 to $1,905, a $1,651 spread on the same certified stone. Queensmith 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

1.30
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851605435
Dimensions11.37 × 5.72 × 3.55 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.37 mm5.72 mm1.30 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851605435
Side View
Table 62.0%Crown 33.1°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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 USD|Low: $254 USD|High: $1,905 USD|Avg: $731 USD
Queensmith
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 10$254 USD
Retailer 3$284 USD
Retailer 5$295 USD
Retailer 16$315 USD
Retailer 14$422 USD
Retailer 2$425 USD
Retailer 4$425 USD
Retailer 8$542 USD
Retailer 9$543 USD
Retailer 15$601 USD
Retailer 17$645 USD
Retailer 7$767 USD
Retailer 18$872 USD
Retailer 12$968 USD
Retailer 19$1,013 USD
Retailer 13$1,020 USD
Retailer 11$1,065 USD
Retailer 6$1,366 USD
Queensmith$1,905 USD

6 data points across 19 retailers

19 retailers$254 USD to $1,905 USD

A
Cheapest Retailer
-
$254 USD
A
Retailer 2
-
$284 USD
View
Final sale: no returns
A
Retailer 3
-
$295 USD
View
A
Retailer 4
-
$315 USD
View
A
Retailer 5
-
$422 USD
£332 GBP
View
A
Retailer 6
-
$425 USD
View
A
Retailer 7
-
$425 USD
View
B+
Retailer 8
-
$542 USD
ZAR 8,749 ZAR
View
B+
Retailer 9
-
$543 USD
View
B+
Retailer 10
-
$601 USD
£473 GBP
View
B+
Retailer 11
-
$645 USD
View
B+
Retailer 12
-
$767 USD
A$1,180 AUD
View
B
Retailer 13
-
$872 USD
A$1,342 AUD
View
B
Retailer 14
-
$968 USD
View
B
Retailer 15
-
$1,013 USD
View
B
Retailer 16
-
$1,020 USD
View
B
Retailer 17
-
$1,065 USD
View
B
Retailer 18
-
$1,366 USD
View
Most Expensive
B
Queensmith
LG851605435 · Oct 28
$1,905 USD
£1,500 GBP
View
18 more retailers have this diamond
Prices start from $254 USDSave up to $1,651 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
1.30ct Marquise
$254 USD