CaratHunter
Plans
Marquise|Lab Grown|IGI

1.20ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG818657945

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818657945

Diamond specifications and retailer prices

From $329 AUD
$231 USD
As of November 1, 2026
Save $1,404 AUD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,733 AUD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818657945 or 818657945. Listed at 22 retailers as of November 1, 2026, with prices from $329 to $1,733, a $1,404 spread on the same certified stone. Reve Diamonds lists it at $1,733. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657945
Dimensions10.50 × 5.48 × 3.39 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.50 mm5.48 mm1.20 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657945
Side View
Table 58.0%Crown 37.3°Girdle: THK-VTKPavilion 37.1°Culet: NoneDepth 61.9%

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 1
Current: $632 AUD|Low: $329 AUD|High: $1,484 AUD|Avg: $774 AUD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 3$329 AUD
Retailer 5$366 AUD
Retailer 4$495 AUD
Retailer 10$598 AUD
Retailer 1$632 AUD
Retailer 7$675 AUD
Retailer 8$766 AUD
Retailer 12$895 AUD
Retailer 13$897 AUD
Retailer 2$944 AUD
Retailer 9$1,025 AUD
Retailer 11$1,038 AUD
Retailer 6$1,466 AUD

42 data points across 13 retailers

22 retailers$329 AUD to $1,733 AUD

Retailer 1
-
$283 AUD
$199 USD
Price last confirmed 31 days ago
A
Retailer 2
-
$329 AUD
$231 USD
View
Final sale: no returns
Retailer 3
-
$343 AUD
$241 USD
View
Price last confirmed 34 days ago
Retailer 4
-
$366 AUD
$257 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
$419 AUD
HK$2,300 HKD
View
B+
Retailer 6
-
$495 AUD
$348 USD
View
A
Retailer 7
-
$598 AUD
€400 EUR
View
A
Retailer 8
-
$619 AUD
$435 USD
View
A
Retailer 9
-
$632 AUD
ZAR 7,171 ZAR
View
A
Retailer 10
-
$675 AUD
£373 GBP
View
B+
Retailer 11
-
$766 AUD
View
B+
Retailer 12
-
$895 AUD
View
B+
Retailer 13
-
$897 AUD
$630 USD
View
B
Retailer 14
-
$944 AUD
$663 USD
View
B+
Retailer 15
-
$1,025 AUD
$720 USD
View
B+
Retailer 16
-
$1,038 AUD
View
Retailer 17
-
$1,177 AUD
$827 USD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$1,191 AUD
SGD 1,131 SGD
View
B
Retailer 19
-
$1,248 AUD
$877 USD
View
B
Retailer 20
-
$1,253 AUD
$880 USD
View
B
Retailer 21
-
$1,466 AUD
£811 GBP
View
Most Expensive
B
Reve Diamonds
02ACDE5D5 · Nov 1
$1,733 AUD
$1,217 USD
View
21 more retailers have this diamond
Prices start from $329 AUDSave up to $1,404 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.

A
1.20ct Marquise
$329 AUD