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4.05ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG780685527

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780685527

Diamond specifications and retailer prices

From $5,339 NZD
£2,369 GBP
As of November 1, 2026
Save $23,884 NZD (82%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $29,223 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.05ct lab-grown round diamond

This 4.05ct 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 LG780685527 or 780685527. Listed at 6 retailers as of October 31, 2026, with prices from $5,339 to $29,223, a $23,884 spread on the same certified stone. Do Amore Diamonds lists it at $29,223. 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

4.05
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780685527
Dimensions10.38 × 10.41 × 6.19 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
10.38 mm10.41 mm4.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780685527
Side View
Table 58.0%Crown 33.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.6%

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: Nov 1
Current: $29,223 NZD|Low: $3,410 NZD|High: $36,036 NZD|Avg: $14,255 NZD
Do Amore Diamonds
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
November 1, 2026
Retailer 4$3,410 NZD
Retailer 2$5,339 NZD
Retailer 5$6,375 NZD
Retailer 13$7,388 NZD
Retailer 10$7,390 NZD
Retailer 15$7,413 NZD
Retailer 12$7,684 NZD
Retailer 7$11,755 NZD
Retailer 17$13,680 NZD
Retailer 16$13,922 NZD
Retailer 8$14,261 NZD
Retailer 11$14,640 NZD
Retailer 6$17,279 NZD
Retailer 3$20,994 NZD
Retailer 9$26,090 NZD
Do Amore Diamonds$29,223 NZD
Retailer 14$36,036 NZD

8 data points across 17 retailers

6 retailers$5,339 NZD to $29,223 NZD

A
Cheapest Retailer
-
$5,339 NZD
£2,369 GBP
A
Retailer 2
-
$7,388 NZD
$4,164 USD
View
A
Retailer 3
-
$7,390 NZD
$4,165 USD
View
A
Retailer 4
-
$7,684 NZD
$4,331 USD
View
B+
Retailer 5
-
$14,640 NZD
£6,497 GBP
View
Most Expensive
B
Do Amore Diamonds
27-5D9B58FE0 · Oct 31
$29,223 NZD
$16,470 USD
View
5 more retailers have this diamond
Prices start from $5,339 NZDSave up to $23,884 NZD

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
4.05ct Round
$5,339 NZD