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Marquise|Lab Grown|IGI

0.91ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG600350943

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG600350943

Diamond specifications and retailer prices

From $149 USD
As of October 28, 2026
Save $364 USD (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $513 USD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.91ct lab-grown marquise diamond

This 0.91ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG600350943 or 600350943. Listed at 8 retailers as of October 28, 2026, with prices from $149 to $513, a $364 spread on the same certified stone. NZ Jewellers lists it at $513. 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

0.91
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600350943
Dimensions9.89 × 5.08 × 3.22 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.89 mm5.08 mm0.91 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600350943
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.4%

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: Oct 28
Current: $513 USD|Low: $149 USD|High: $640 USD|Avg: $373 USD
NZ Jewellers
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
October 29, 2026
Retailer 8$149 USD
Retailer 10$179 USD
Retailer 2$212 USD
Retailer 11$266 USD
Retailer 9$304 USD
Retailer 13$323 USD
Retailer 12$328 USD
Retailer 7$402 USD
Retailer 4$409 USD
Retailer 6$441 USD
Retailer 5$486 USD
NZ Jewellers$513 USD
Retailer 3$593 USD
Retailer 14$640 USD

2 data points across 14 retailers

8 retailers$149 USD to $513 USD

A
Cheapest Retailer
-
$149 USD
A
Retailer 2
-
$179 USD
HK$1,400 HKD
View
A
Retailer 3
-
$212 USD
£167 GBP
View
A
Retailer 4
-
$266 USD
£209 GBP
View
A
Retailer 5
-
$304 USD
View
A
Retailer 6
-
$328 USD
£259 GBP
View
B+
Retailer 7
-
$402 USD
View
Most Expensive
B+
NZ Jewellers
3b9c7151-7e79-431f-ba92-7defdcb28509 · Oct 28
$513 USD
View
7 more retailers have this diamond
Prices start from $149 USDSave up to $364 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
0.91ct Marquise
$149 USD