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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 $2,384 AUD
£1,319 GBP
As of October 30, 2026
Save $8,383 AUD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,767 AUD at Taylor and Hart · As of October 31, 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 30, 2026, with prices from $2,384 to $10,767, a $8,383 spread on the same certified stone. Taylor and Hart lists it at $10,767. 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
D
Colour
IF
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
Top View
10.23 mm10.30 mm4.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG679506702
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

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 30
Current: $6,586 AUD|Low: $2,384 AUD|High: $11,034 AUD|Avg: $5,096 AUD|-0.3%
Retailer 1
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
Taylor and Hart
October 31, 2026
Retailer 16$2,384 AUD
Retailer 7$2,716 AUD
Retailer 14$2,883 AUD
Retailer 17$2,965 AUD
Retailer 10$3,074 AUD
Retailer 9$3,150 AUD
Retailer 13$3,153 AUD
Retailer 8$3,418 AUD
Retailer 11$4,209 AUD
Retailer 3$4,548 AUD
Retailer 6$5,173 AUD
Retailer 12$5,760 AUD
Retailer 1$6,586 AUD
Retailer 2$6,707 AUD
Retailer 5$6,761 AUD
Retailer 15$8,281 AUD
Retailer 4$9,011 AUD
Taylor and Hart$10,767 AUD

31 data points across 18 retailers

18 retailers$2,384 AUD to $10,767 AUD

A+
Cheapest Retailer
-
$2,384 AUD
£1,319 GBP
A
Retailer 2
-
$2,716 AUD
$1,908 USD
View
A
Retailer 3
-
$2,883 AUD
$2,025 USD
View
A
Retailer 4
-
$2,965 AUD
$2,083 USD
View
Final sale: no returns
A
Retailer 5
-
$3,074 AUD
$2,159 USD
View
Retailer 6
-
$3,150 AUD
$2,213 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$3,153 AUD
$2,215 USD
View
A
Retailer 8
-
$3,418 AUD
$2,401 USD
View
A
Retailer 9
-
$4,209 AUD
£2,328 GBP
View
A
Retailer 10
-
$4,548 AUD
$3,195 USD
View
A
Retailer 11
-
$5,173 AUD
$3,634 USD
View
A
Retailer 12
-
$5,760 AUD
$4,046 USD
View
A
Retailer 13
-
$6,586 AUD
$4,626 USD
View
A
Retailer 14
-
$6,707 AUD
ZAR 76,110 ZAR
View
Retailer 15
-
$6,761 AUD
View
Price last confirmed 9 days ago
A
Retailer 16
-
$8,281 AUD
$5,817 USD
View
B+
Retailer 17
-
$9,011 AUD
£4,984 GBP
View
Most Expensive
B+
Taylor and Hart
8Y0X2RH · Oct 31
$10,767 AUD
$7,563 USD
View
17 more retailers have this diamond
Prices start from $2,384 AUDSave up to $8,383 AUD

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+
4.18ct Round
$2,384 AUD