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Marquise|Lab Grown|IGI

1.77ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG709531220

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG709531220

Diamond specifications and retailer prices

From $937 AUD
$657 USD
As of November 2, 2026
Save $7,381 AUD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,319 AUD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.77ct lab-grown marquise diamond

This 1.77ct 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 LG709531220 or 709531220. Listed at 17 retailers as of November 1, 2026, with prices from $937 to $8,319, a $7,381 spread on the same certified stone. Do Amore Diamonds lists it at $8,319. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG709531220
Dimensions12.08 × 6.19 × 4.04 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.08 mm6.19 mm1.77 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG709531220
Side View
Table 59.0%Crown 36.8°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 65.3%

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: Nov 2
Current: $8,319 AUD|Low: $919 AUD|High: $9,360 AUD|Avg: $3,202 AUD|-11.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 14$937 AUD
Retailer 5$1,020 AUD
Retailer 9$1,196 AUD
Retailer 16$1,320 AUD
Retailer 6$1,341 AUD
Retailer 8$1,651 AUD
Retailer 15$1,772 AUD
Retailer 13$1,952 AUD
Retailer 17$2,777 AUD
Retailer 11$2,987 AUD
Retailer 4$3,212 AUD
Retailer 3$3,373 AUD
Retailer 7$3,603 AUD
Retailer 2$4,712 AUD
Retailer 12$5,180 AUD
Retailer 10$6,213 AUD
Do Amore Diamonds$8,319 AUD

31 data points across 17 retailers

17 retailers$937 AUD to $8,319 AUD

A
Cheapest Retailer
-
$937 AUD
$657 USD
A
Retailer 2
-
$1,020 AUD
$715 USD
View
A
Retailer 3
-
$1,196 AUD
$838 USD
View
Final sale: no returns
A
Retailer 4
-
$1,320 AUD
$925 USD
View
A
Retailer 5
-
$1,341 AUD
$940 USD
View
A
Retailer 6
-
$1,651 AUD
$1,157 USD
View
A
Retailer 7
-
$1,772 AUD
$1,242 USD
View
A
Retailer 8
-
$1,952 AUD
€1,303 EUR
View
B+
Retailer 9
-
$2,777 AUD
$1,946 USD
View
B+
Retailer 10
-
$2,987 AUD
View
B+
Retailer 11
-
$3,212 AUD
$2,251 USD
View
B+
Retailer 12
-
$3,373 AUD
$2,364 USD
View
Retailer 13
-
$3,603 AUD
$2,525 USD
View
Price last confirmed 26 days ago
B+
Retailer 14
-
$4,712 AUD
£2,600 GBP
View
B+
Retailer 15
-
$5,180 AUD
$3,630 USD
View
B
Retailer 16
-
$6,213 AUD
View
Most Expensive
B
Do Amore Diamonds
27-8AE58C5F7 · Nov 1
$8,319 AUD
$5,830 USD
View
16 more retailers have this diamond
Prices start from $937 AUDSave up to $7,381 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
1.77ct Marquise
$937 AUD