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 $657 USD
As of October 30, 2026
Save $5,173 USD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,830 USD 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 October 30, 2026, with prices from $657 to $5,830, a $5,173 spread on the same certified stone. Do Amore Diamonds lists it at $5,830. 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
Color
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: Oct 30
Current: $5,830 USD|Low: $644 USD|High: $6,560 USD|Avg: $2,250 USD|-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
October 31, 2026
Retailer 14$657 USD
Retailer 5$715 USD
Retailer 9$838 USD
Retailer 16$925 USD
Retailer 6$940 USD
Retailer 8$1,157 USD
Retailer 15$1,242 USD
Retailer 12$1,368 USD
Retailer 17$1,946 USD
Retailer 10$2,094 USD
Retailer 4$2,251 USD
Retailer 3$2,364 USD
Retailer 7$2,525 USD
Retailer 13$3,320 USD
Retailer 11$3,630 USD
Retailer 2$4,354 USD
Do Amore Diamonds$5,830 USD

31 data points across 17 retailers

17 retailers$657 USD to $5,830 USD

A
Cheapest Retailer
-
$657 USD
A
Retailer 2
-
$715 USD
View
A
Retailer 3
-
$838 USD
View
Final sale: no returns
A
Retailer 4
-
$925 USD
View
A
Retailer 5
-
$940 USD
View
A
Retailer 6
-
$1,157 USD
View
A
Retailer 7
-
$1,242 USD
View
A
Retailer 8
-
$1,368 USD
€1,303 EUR
View
B+
Retailer 9
-
$1,946 USD
View
B+
Retailer 10
-
$2,094 USD
A$3,221 AUD
View
B+
Retailer 11
-
$2,251 USD
View
B+
Retailer 12
-
$2,364 USD
View
Retailer 13
-
$2,525 USD
View
Price last confirmed 25 days ago
B+
Retailer 14
-
$3,320 USD
£2,614 GBP
View
B+
Retailer 15
-
$3,630 USD
View
B
Retailer 16
-
$4,354 USD
A$6,699 AUD
View
Most Expensive
B
Do Amore Diamonds
27-8AE58C5F7 · Nov 1
$5,830 USD
View
16 more retailers have this diamond
Prices start from $657 USDSave up to $5,173 USD

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
$657 USD