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Round|Lab Grown|IGI

4.03ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818658820

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818658820

Diamond specifications and retailer prices

From $4,099 AUD
$2,879 USD
As of October 29, 2026
Save $12,466 AUD (75%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $16,564 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.03ct lab-grown round diamond

This 4.03ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818658820 or 818658820. Listed at 21 retailers as of October 29, 2026, with prices from $4,099 to $16,564, a $12,466 spread on the same certified stone. Taylor and Hart lists it at $16,564. 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

4.03
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658820
Dimensions10.23 × 10.28 × 6.32 mm
L/W Ratio1.00
Girdle conditionFaceted
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 mm10.28 mm4.03 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658820
Side View
Table 55.0%Crown 33.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
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: $4,459 AUD|Low: $4,099 AUD|High: $17,652 AUD|Avg: $8,216 AUD|-6.2%
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
Retailer 18
Retailer 19
Retailer 20
Taylor and Hart
October 31, 2026
Retailer 8$4,099 AUD
Retailer 1$4,459 AUD
Retailer 5$4,590 AUD
Retailer 14$4,681 AUD
Retailer 18$4,755 AUD
Retailer 9$4,904 AUD
Retailer 3$4,983 AUD
Retailer 13$5,067 AUD
Retailer 2$6,129 AUD
Retailer 12$6,154 AUD
Retailer 15$6,398 AUD
Retailer 20$6,536 AUD
Retailer 7$7,146 AUD
Retailer 17$7,571 AUD
Retailer 16$10,121 AUD
Retailer 11$10,229 AUD
Retailer 4$11,377 AUD
Retailer 6$12,456 AUD
Retailer 10$12,858 AUD
Retailer 19$13,225 AUD
Taylor and Hart$16,564 AUD

24 data points across 21 retailers

21 retailers$4,099 AUD to $16,564 AUD

A
Cheapest Retailer
-
$4,099 AUD
$2,879 USD
A
Retailer 2
-
$4,459 AUD
$3,132 USD
View
A
Retailer 3
-
$4,590 AUD
$3,224 USD
View
Final sale: no returns
A
Retailer 4
-
$4,681 AUD
£2,589 GBP
View
A
Retailer 5
-
$4,755 AUD
$3,340 USD
View
A
Retailer 6
-
$4,904 AUD
$3,445 USD
View
A
Retailer 7
-
$4,983 AUD
$3,500 USD
View
Retailer 8
-
$5,067 AUD
$3,559 USD
View
Price last confirmed 20 days ago
A
Retailer 9
-
$6,129 AUD
$4,305 USD
View
A
Retailer 10
-
$6,154 AUD
$4,323 USD
View
A
Retailer 11
-
$6,398 AUD
£3,539 GBP
View
A
Retailer 12
-
$6,536 AUD
$4,591 USD
View
A
Retailer 13
-
$7,146 AUD
$5,020 USD
View
A
Retailer 14
-
$7,571 AUD
€5,065 EUR
View
B+
Retailer 15
-
$10,121 AUD
ZAR 114,849 ZAR
View
Retailer 16
-
$10,229 AUD
$7,185 USD
View
Price last confirmed 13 days ago
B+
Retailer 17
-
$11,377 AUD
$7,992 USD
View
B+
Retailer 18
-
$12,456 AUD
$8,749 USD
View
B+
Retailer 19
-
$12,858 AUD
£7,112 GBP
View
B+
Retailer 20
-
$13,225 AUD
$9,290 USD
View
Most Expensive
B
Taylor and Hart
YB4GNG4 · Oct 30
$16,564 AUD
$11,636 USD
View
20 more retailers have this diamond
Prices start from $4,099 AUDSave up to $12,466 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
4.03ct Round
$4,099 AUD