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Round|Lab Grown|IGI

4.00ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG799638998

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799638998

Diamond specifications and retailer prices

From $5,179 NZD
£2,299 GBP
As of November 1, 2026
Save $23,174 NZD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $31,583 NZD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 4ct lab-grown round diamond

This 4ct 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 LG799638998 or 799638998. Listed at 13 retailers as of October 31, 2026, with a 447% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.00
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799638998
Dimensions10.18 × 10.12 × 6.26 mm
L/W Ratio1.01
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
10.18 mm10.12 mm4.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799638998
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.6%

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: $24,627 NZD|Low: $4,507 NZD|High: $37,473 NZD|Avg: $15,145 NZD|-34.3%
Brilliant Earth
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
November 1, 2026
Retailer 14$4,507 NZD
Retailer 2$5,179 NZD
Retailer 9$7,326 NZD
Retailer 8$7,328 NZD
Retailer 11$7,459 NZD
Retailer 13$11,191 NZD
Retailer 7$12,012 NZD
Retailer 5$12,553 NZD
Retailer 3$13,309 NZD
Retailer 10$14,147 NZD
Retailer 4$17,315 NZD
Brilliant Earth$24,627 NZD
Retailer 12$28,353 NZD
Retailer 6$31,487 NZD

19 data points across 14 retailers

13 retailers$5,179 NZD to $28,353 NZD

Retailer 1
-
$4,422 NZD
$2,492 USD
Price last confirmed 30 days ago
Retailer 2
-
$5,011 NZD
$2,824 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
$5,179 NZD
£2,299 GBP
View
A
Retailer 4
-
$7,326 NZD
$4,129 USD
View
A
Retailer 5
-
$7,328 NZD
$4,130 USD
View
A
Retailer 6
-
$7,459 NZD
$4,204 USD
View
Retailer 7
-
$8,107 NZD
$4,569 USD
View
Price last confirmed 31 days ago
B+
Retailer 8
-
$11,191 NZD
$6,307 USD
View
B+
Retailer 9
-
$12,012 NZD
$6,770 USD
View
B+
Retailer 10
-
$14,147 NZD
£6,278 GBP
View
B
Retailer 11
-
$24,627 NZD
$13,880 USD
View
B
Retailer 12
-
$28,353 NZD
$15,980 USD
View
Most Expensive
Brilliant Earth
21412100B · Oct 21
$31,583 NZD
$17,800 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $5,179 NZDSave up to $23,174 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
4.00ct Round
$5,179 NZD