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Marquise|Lab Grown|IGI

1.71ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG806630081

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG806630081

Diamond specifications and retailer prices

From $782 AUD
$549 USD
As of October 29, 2026
Save $5,639 AUD (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,420 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.71ct lab-grown marquise diamond

This 1.71ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG806630081 or 806630081. Listed at 17 retailers as of October 29, 2026, with prices from $782 to $6,420, a $5,639 spread on the same certified stone. Brilliant Earth lists it at $6,420. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG806630081
Dimensions12.75 × 6.21 × 3.72 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.75 mm6.21 mm1.71 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG806630081
Side View
Table 61.0%Crown 36.9°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 59.9%

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 29
Current: $2,325 AUD|Low: $782 AUD|High: $3,784 AUD|Avg: $1,953 AUD|+7.9%
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
Retailer 14
Retailer 15
October 31, 2026
Retailer 3$782 AUD
Retailer 2$1,061 AUD
Retailer 8$1,315 AUD
Retailer 9$1,347 AUD
Retailer 11$1,438 AUD
Retailer 6$1,494 AUD
Retailer 15$1,505 AUD
Retailer 13$1,901 AUD
Retailer 10$2,014 AUD
Retailer 1$2,325 AUD
Retailer 4$2,740 AUD
Retailer 14$2,820 AUD
Retailer 12$2,832 AUD
Retailer 5$3,032 AUD
Retailer 7$3,688 AUD

20 data points across 15 retailers

17 retailers$782 AUD to $6,420 AUD

A
Cheapest Retailer
-
$782 AUD
$549 USD
Final sale: no returns
A
Retailer 2
-
$1,061 AUD
$745 USD
View
A
Retailer 3
-
$1,315 AUD
$924 USD
View
A
Retailer 4
-
$1,347 AUD
$946 USD
View
A
Retailer 5
-
$1,438 AUD
£795 GBP
View
A
Retailer 6
-
$1,494 AUD
ZAR 16,959 ZAR
View
A
Retailer 7
-
$1,505 AUD
€1,007 EUR
View
A
Retailer 8
-
$1,901 AUD
$1,335 USD
View
A
Retailer 9
-
$2,014 AUD
View
A
Retailer 10
-
$2,325 AUD
$1,633 USD
View
B+
Retailer 11
-
$2,740 AUD
SGD 2,601 SGD
View
B+
Retailer 12
-
$2,820 AUD
$1,981 USD
View
B+
Retailer 13
-
$2,832 AUD
$1,989 USD
View
B+
Retailer 14
-
$3,032 AUD
$2,130 USD
View
Retailer 15
-
$3,688 AUD
£2,040 GBP
View
Price last confirmed 9 days ago
Retailer 16
-
$4,082 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
20219477A · Oct 30
$6,420 AUD
$4,510 USD
View
16 more retailers have this diamond
Prices start from $782 AUDSave up to $5,639 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
1.71ct Marquise
$782 AUD