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Marquise|Lab Grown|IGI

1.61ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG817610778

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817610778

Diamond specifications and retailer prices

From $908 AUD
$638 USD
As of November 1, 2026
Save $4,288 AUD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,196 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.61ct lab-grown marquise diamond

This 1.61ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817610778 or 817610778. Listed at 19 retailers as of October 31, 2026, with prices from $908 to $5,196, a $4,288 spread on the same certified stone. Brilliant Earth lists it at $5,196. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817610778
Dimensions11.81 × 6.07 × 3.74 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.81 mm6.07 mm1.61 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817610778
Side View
Table 58.0%Crown 38.8°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 61.6%

Caratlytics Score

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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: Nov 1
Current: $5,196 AUD|Low: $908 AUD|High: $5,367 AUD|Avg: $2,299 AUD|-3.2%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 2$908 AUD
Retailer 3$911 AUD
Retailer 14$1,196 AUD
Retailer 12$1,355 AUD
Retailer 15$1,426 AUD
Retailer 9$1,480 AUD
Retailer 13$1,578 AUD
Retailer 17$1,744 AUD
Retailer 8$1,751 AUD
Retailer 6$2,363 AUD
Retailer 5$2,518 AUD
Retailer 11$2,972 AUD
Retailer 7$3,086 AUD
Retailer 4$3,195 AUD
Retailer 18$3,273 AUD
Retailer 16$3,337 AUD
Retailer 10$4,448 AUD
Retailer 19$5,140 AUD
Brilliant Earth$5,196 AUD

18 data points across 19 retailers

19 retailers$908 AUD to $5,196 AUD

A
Cheapest Retailer
-
$908 AUD
$638 USD
A
Retailer 2
-
$911 AUD
$640 USD
View
Final sale: no returns
A
Retailer 3
-
$1,196 AUD
$840 USD
View
A
Retailer 4
-
$1,355 AUD
$952 USD
View
A
Retailer 5
-
$1,426 AUD
$1,002 USD
View
A
Retailer 6
-
$1,480 AUD
€990 EUR
View
A
Retailer 7
-
$1,578 AUD
£873 GBP
View
A
Retailer 8
-
$1,744 AUD
$1,225 USD
View
A
Retailer 9
-
$1,751 AUD
ZAR 19,873 ZAR
View
A
Retailer 10
-
$2,363 AUD
View
B+
Retailer 11
-
$2,518 AUD
$1,769 USD
View
B+
Retailer 12
-
$2,972 AUD
£1,644 GBP
View
B+
Retailer 13
-
$3,086 AUD
$2,168 USD
View
B+
Retailer 14
-
$3,195 AUD
SGD 3,033 SGD
View
B+
Retailer 15
-
$3,273 AUD
$2,299 USD
View
B+
Retailer 16
-
$3,337 AUD
$2,344 USD
View
B+
Retailer 17
-
$4,448 AUD
£2,460 GBP
View
B
Retailer 18
-
$5,140 AUD
View
Most Expensive
B
Brilliant Earth
20772153A · Oct 31
$5,196 AUD
$3,650 USD
View
18 more retailers have this diamond
Prices start from $908 AUDSave up to $4,288 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
1.61ct Marquise
$908 AUD