Asscher|Lab Grown|IGI

1.78ct D FL Asscher Lab Grown Diamond

ID • D/FL • IGI LG788630252

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG788630252

Diamond specifications and retailer prices

From $395 USD

As of November 2, 2026

Save $3,565 USD (90%) vs most expensive(unlock to see where)

13 retailers carry this diamond

Most expensive: $3,960 USD at Brilliant Earth · As of November 4, 2026

View at Brilliant Earth

About this 1.78ct lab-grown asscher diamond

This 1.78ct lab-grown asscher sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788630252 or 788630252. Listed at 13 retailers as of November 2, 2026, with prices from $395 to $3,960, a $3,565 spread on the same certified stone. Brilliant Earth lists it at $3,960. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle30.1°

Pavilion angle40°

OriginLab Grown

Grading LabIGI

CertificateIGI LG788630252

Dimensions6.78 × 6.70 × 4.31 mm

L/W Ratio1.01

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG788630252

Side View

Caratlytics Score

How it works →

A+

Exceptional

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: $3,960 USD|Low: $395 USD|High: $6,860 USD|Avg: $2,266 USD|-32.1%

Brilliant Earth

Retailer 2

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November 5, 2026

Retailer 17$395 USD

Retailer 16$443 USD

Retailer 3$777 USD

Retailer 13$780 USD

Retailer 5$866 USD

Retailer 14$1,319 USD

Retailer 9$1,412 USD

Retailer 8$1,603 USD

Retailer 12$1,630 USD

Retailer 7$1,631 USD

Retailer 19$1,740 USD

Retailer 2$1,795 USD

Retailer 15$1,987 USD

Retailer 10$2,494 USD

Retailer 6$2,758 USD

Retailer 11$3,071 USD

Retailer 18$3,510 USD

Retailer 4$3,900 USD

Brilliant Earth$3,960 USD

32 data points across 19 retailers

13 retailers$395 USD to $3,960 USD

A+

Cheapest Retailer

$395 USD

Retailer 2

$443 USD

View

Retailer 3

$777 USD

View

Retailer 4

$780 USD

View

Retailer 5

$866 USD

View

Final sale: no returns

B+

Retailer 6

$1,319 USD

View

B+

Retailer 7

$1,630 USD

View

B+

Retailer 8

$1,740 USD

View

B+

Retailer 9

$1,795 USD

View

B+

Retailer 10

$1,987 USD

View

Retailer 11

$3,510 USD

View

Retailer 12

$3,900 USD

View

Most Expensive

Brilliant Earth

21413558Y · Nov 4

$3,960 USD

View

12 more retailers have this diamond

Prices start from $395 USDSave up to $3,565 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.

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A+

1.78ct Asscher

$395 USD