CaratHunter
Plans
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 $840 SGD
$657 USD
As of November 2, 2026
Save $6,616 SGD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,456 SGD 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 $840 to $7,456, a $6,616 spread on the same certified stone. Do Amore Diamonds lists it at $7,456. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $7,456 SGD|Low: $824 SGD|High: $8,390 SGD|Avg: $2,872 SGD|-11.1%
Do Amore Diamonds
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
November 1, 2026
Retailer 14$840 SGD
Retailer 5$914 SGD
Retailer 9$1,072 SGD
Retailer 16$1,183 SGD
Retailer 6$1,202 SGD
Retailer 8$1,480 SGD
Retailer 15$1,588 SGD
Retailer 13$1,750 SGD
Retailer 17$2,489 SGD
Retailer 11$2,678 SGD
Retailer 4$2,879 SGD
Retailer 3$3,023 SGD
Retailer 7$3,229 SGD
Retailer 2$4,223 SGD
Retailer 12$4,642 SGD
Retailer 10$5,569 SGD
Do Amore Diamonds$7,456 SGD

32 data points across 17 retailers

17 retailers$840 SGD to $7,456 SGD

A
Cheapest Retailer
-
$840 SGD
$657 USD
A
Retailer 2
-
$914 SGD
$715 USD
View
A
Retailer 3
-
$1,072 SGD
$838 USD
View
Final sale: no returns
A
Retailer 4
-
$1,183 SGD
$925 USD
View
A
Retailer 5
-
$1,202 SGD
$940 USD
View
A
Retailer 6
-
$1,480 SGD
$1,157 USD
View
A
Retailer 7
-
$1,588 SGD
$1,242 USD
View
A
Retailer 8
-
$1,750 SGD
€1,303 EUR
View
B+
Retailer 9
-
$2,489 SGD
$1,946 USD
View
B+
Retailer 10
-
$2,678 SGD
A$3,221 AUD
View
B+
Retailer 11
-
$2,879 SGD
$2,251 USD
View
B+
Retailer 12
-
$3,023 SGD
$2,364 USD
View
Retailer 13
-
$3,229 SGD
$2,525 USD
View
Price last confirmed 26 days ago
B+
Retailer 14
-
$4,223 SGD
£2,600 GBP
View
B+
Retailer 15
-
$4,642 SGD
$3,630 USD
View
B
Retailer 16
-
$5,569 SGD
A$6,699 AUD
View
Most Expensive
B
Do Amore Diamonds
27-8AE58C5F7 · Nov 1
$7,456 SGD
$5,830 USD
View
16 more retailers have this diamond
Prices start from $840 SGDSave up to $6,616 SGD

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
$840 SGD