Radiant|Lab Grown|IGI

1.77ct H VS2 Radiant Lab Grown Diamond

ID • H/VS2 • IGI LG778659561

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG778659561

Diamond specifications and retailer prices

From $222 USD
As of October 30, 2026
Save $1,028 USD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,250 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.77ct lab-grown radiant diamond

This 1.77ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778659561 or 778659561. Listed at 15 retailers as of October 29, 2026, with prices from $222 to $1,250, a $1,028 spread on the same certified stone. Brilliant Earth lists it at $1,250. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
H
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778659561
Dimensions8.87 × 5.92 × 4.03 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.87 mm5.92 mm1.77 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778659561
Side View
Table 62.0%Crown 37.5°Girdle: Slightly ThickPavilion 34.3°Culet: NoneDepth 68.1%

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: Oct 30
Current: $1,250 USD|Low: $215 USD|High: $1,290 USD|Avg: $697 USD|-3.1%
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
October 30, 2026
Retailer 9$222 USD
Retailer 2$248 USD
Retailer 4$259 USD
Retailer 12$275 USD
Retailer 15$277 USD
Retailer 8$468 USD
Retailer 3$579 USD
Retailer 14$615 USD
Retailer 5$736 USD
Retailer 6$889 USD
Retailer 10$889 USD
Retailer 11$937 USD
Retailer 7$990 USD
Retailer 13$1,115 USD
Brilliant Earth$1,250 USD

34 data points across 15 retailers

15 retailers$222 USD to $1,250 USD

A
Cheapest Retailer
-
$222 USD
A
Retailer 2
-
$248 USD
View
Final sale: no returns
A
Retailer 3
-
$259 USD
View
A
Retailer 4
-
$275 USD
View
A
Retailer 5
-
$277 USD
View
B+
Retailer 6
-
$468 USD
View
A
Retailer 7
-
$579 USD
View
A
Retailer 8
-
$615 USD
View
B+
Retailer 9
-
$736 USD
View
B+
Retailer 10
-
$889 USD
View
B+
Retailer 11
-
$889 USD
SGD 1,202 SGD
View
B+
Retailer 12
-
$937 USD
View
Retailer 13
-
$990 USD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
$1,115 USD
£878 GBP
View
Most Expensive
B
Brilliant Earth
21501255A · Oct 29
$1,250 USD
View
14 more retailers have this diamond
Prices start from $222 USDSave up to $1,028 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 Radiant
$222 USD