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Marquise|Lab Grown|IGI

1.05ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG843623987

Shape and cutting style on the report: Marquise rose cut

Certificate IGI LG843623987

Diamond specifications and retailer prices

From $4,987 AUD
As of November 6, 2026
Save $2,243 AUD (31%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,673 AUD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843623987 or 843623987. Listed at 11 retailers as of November 6, 2026, with a 45% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.05
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843623987
Dimensions8.94 × 5.79 × 2.98 mm
L/W Ratio1.54
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.94 mm5.79 mm1.05 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843623987
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 51.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,387 AUD|Low: $4,987 AUD|High: $17,163 AUD|Avg: $8,232 AUD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Yorxs
November 6, 2026
Retailer 6$4,987 AUD
Retailer 2$5,427 AUD
Retailer 5$5,578 AUD
Retailer 9$5,585 AUD
Retailer 8$5,785 AUD
Retailer 10$7,230 AUD
Retailer 1$8,387 AUD
Retailer 4$8,974 AUD
Yorxs$9,673 AUD
Retailer 3$12,358 AUD
Retailer 7$16,838 AUD

14 data points across 11 retailers

11 retailers$4,987 AUD to $7,230 AUD

B
Cheapest Retailer
-
$4,987 AUD
B
Retailer 2
-
$5,427 AUD
View
B
Retailer 3
-
$5,578 AUD
View
B
Retailer 4
-
$5,585 AUD
View
Final sale: no returns
B
Retailer 5
-
$5,785 AUD
View
B
Retailer 6
-
$7,230 AUD
View
Retailer 7
-
$8,387 AUD
View
Price under review
Retailer 8
-
$8,974 AUD
View
Price under review
Most Expensive
Yorxs
EABCA05B2 · Nov 6
$9,673 AUD
€6,449 EUR
View
Price under review
8 more retailers have this diamond
Prices start from $4,987 AUDSave up to $2,243 AUD

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.

B
1.05ct Marquise
$4,987 AUD