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Round|Lab Grown|IGI

4.18ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG691525873

Shape and cutting style on the report: Round brilliant

Certificate IGI LG691525873

Diamond specifications and retailer prices

From $4,674 AUD
£2,585 GBP
As of October 30, 2026
Save $31,244 AUD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $35,917 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG691525873 or 691525873. Listed at 24 retailers as of October 29, 2026, with prices from $4,674 to $35,917, a $31,244 spread on the same certified stone. Do Amore Diamonds lists it at $35,917. 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 angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691525873
Dimensions10.30 × 10.34 × 6.38 mm
L/W Ratio1.00
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
10.30 mm10.34 mm4.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691525873
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
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: $28,814 AUD|Low: $4,517 AUD|High: $33,398 AUD|Avg: $11,187 AUD|-13.7%
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
October 30, 2026
Retailer 8$4,674 AUD
Retailer 2$4,705 AUD
Retailer 3$5,458 AUD
Retailer 13$5,460 AUD
Retailer 7$5,467 AUD
Retailer 15$7,528 AUD
Retailer 9$7,838 AUD
Retailer 5$8,472 AUD
Retailer 12$9,540 AUD
Retailer 10$12,821 AUD
Retailer 11$12,974 AUD
Retailer 14$13,065 AUD
Retailer 4$13,729 AUD
Retailer 6$20,766 AUD
Retailer 1$28,814 AUD

38 data points across 15 retailers

24 retailers$4,674 AUD to $35,917 AUD

A
Cheapest Retailer
-
$4,674 AUD
£2,585 GBP
A
Retailer 2
-
$4,705 AUD
$3,305 USD
View
A
Retailer 3
-
$5,119 AUD
$3,596 USD
View
A
Retailer 4
-
$5,270 AUD
$3,702 USD
View
Final sale: no returns
A
Retailer 5
-
$5,458 AUD
$3,834 USD
View
Retailer 6
-
$5,458 AUD
$3,834 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$5,460 AUD
$3,835 USD
View
A
Retailer 8
-
$5,467 AUD
$3,840 USD
View
A
Retailer 9
-
$5,522 AUD
$3,879 USD
View
A
Retailer 10
-
$7,528 AUD
$5,288 USD
View
A
Retailer 11
-
$7,528 AUD
$5,288 USD
View
A
Retailer 12
-
$7,838 AUD
£4,335 GBP
View
A
Retailer 13
-
$8,472 AUD
$5,951 USD
View
B+
Retailer 14
-
$9,540 AUD
€6,382 EUR
View
B+
Retailer 15
-
$12,821 AUD
ZAR 145,498 ZAR
View
B+
Retailer 16
-
$12,974 AUD
£7,176 GBP
View
Retailer 17
-
$13,065 AUD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
$13,729 AUD
$9,644 USD
View
B+
Retailer 19
-
$14,427 AUD
$10,134 USD
View
B
Retailer 20
-
$20,766 AUD
SGD 19,712 SGD
View
B
Retailer 21
-
$21,255 AUD
$14,930 USD
View
B
Retailer 22
-
$28,814 AUD
$20,240 USD
View
B
Retailer 23
-
$32,373 AUD
$22,740 USD
View
Most Expensive
B
Do Amore Diamonds
23-691525873 · Oct 29
$35,917 AUD
$25,230 USD
View
23 more retailers have this diamond
Prices start from $4,674 AUDSave up to $31,244 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
$4,674 AUD