Round|Lab Grown|IGI

4.18ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG679506702

Shape and cutting style on the report: Round brilliant

Certificate IGI LG679506702

Diamond specifications and retailer prices

From $1,722 USD

£1,356 GBP

As of October 29, 2026

Save $6,029 USD (78%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: $7,751 USD at Taylor and Hart · As of October 27, 2026

View at Taylor and Hart

About this 4.18ct lab-grown round diamond

This 4.18ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG679506702 or 679506702. Listed at 18 retailers as of October 27, 2026, with prices from $1,722 to $7,751, a $6,029 spread on the same certified stone. Taylor and Hart lists it at $7,751. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.18

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.5°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG679506702

Dimensions10.23 × 10.30 × 6.39 mm

L/W Ratio1.01

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG679506702

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: Oct 29

Current: $1,722 USD|Low: $1,711 USD|High: $7,751 USD|Avg: $3,601 USD|-5.0%

Retailer 1

Retailer 2

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Taylor and Hart

October 29, 2026

Retailer 1$1,722 USD

Retailer 17$1,908 USD

Retailer 9$2,076 USD

Retailer 6$2,136 USD

Retailer 3$2,213 USD

Retailer 8$2,213 USD

Retailer 11$2,380 USD

Retailer 4$2,401 USD

Retailer 10$3,013 USD

Retailer 12$3,195 USD

Retailer 16$3,634 USD

Retailer 5$4,149 USD

Retailer 2$4,642 USD

Retailer 14$4,693 USD

Retailer 15$4,750 USD

Retailer 7$5,964 USD

Retailer 13$6,330 USD

Taylor and Hart$7,751 USD

37 data points across 18 retailers

18 retailers$1,722 USD to $7,751 USD

A+

Cheapest Retailer

$1,722 USD

£1,356 GBP

Retailer 2

$1,908 USD

View

Retailer 3

$2,076 USD

View

Retailer 4

$2,136 USD

View

Final sale: no returns

Retailer 5

$2,213 USD

View

Retailer 6

$2,213 USD

View

Price last confirmed 18 days ago

Retailer 7

$2,380 USD

View

Retailer 8

$2,401 USD

View

Retailer 9

$3,013 USD

£2,373 GBP

View

Retailer 10

$3,195 USD

View

Retailer 11

$3,634 USD

View

Retailer 12

$4,149 USD

View

Retailer 13

$4,642 USD

View

Retailer 14

$4,693 USD

ZAR 75,812 ZAR

View

Retailer 15

$4,750 USD

A$7,307 AUD

View

Retailer 16

$5,964 USD

View

B+

Retailer 17

$6,330 USD

£4,984 GBP

View

Most Expensive

B+

Taylor and Hart

8Y0X2RH · Oct 27

$7,751 USD

View

17 more retailers have this diamond

Prices start from $1,722 USDSave up to $6,029 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+

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