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Round|Lab Grown|IGI

3.90ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG804659326

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804659326

Diamond specifications and retailer prices

From $5,646 NZD
$3,182 USD
As of November 1, 2026
Save $18,325 NZD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $23,971 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.9ct lab-grown round diamond

This 3.9ct 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 LG804659326 or 804659326. Listed at 12 retailers as of October 31, 2026, with prices from $5,646 to $23,971, a $18,325 spread on the same certified stone. Brilliant Earth lists it at $23,971. 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

3.90
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659326
Dimensions10.12 × 10.06 × 6.19 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
10.12 mm10.06 mm3.90 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659326
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

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: $23,971 NZD|Low: $5,413 NZD|High: $29,790 NZD|Avg: $13,097 NZD|-19.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7$5,646 NZD
Retailer 3$7,423 NZD
Retailer 6$8,392 NZD
Retailer 4$8,890 NZD
Retailer 9$9,628 NZD
Retailer 5$11,932 NZD
Retailer 8$14,615 NZD
Retailer 2$14,897 NZD
Retailer 10$21,151 NZD
Brilliant Earth$23,971 NZD

41 data points across 10 retailers

12 retailers$5,646 NZD to $23,971 NZD

A
Cheapest Retailer
-
$5,646 NZD
$3,182 USD
B+
Retailer 2
-
$6,813 NZD
HK$30,000 HKD
View
B+
Retailer 3
-
$7,230 NZD
$4,075 USD
View
B+
Retailer 4
-
$7,423 NZD
£3,294 GBP
View
B+
Retailer 5
-
$8,392 NZD
$4,730 USD
View
B+
Retailer 6
-
$8,890 NZD
€4,772 EUR
View
B+
Retailer 7
-
$11,932 NZD
$6,725 USD
View
B
Retailer 8
-
$14,615 NZD
$8,237 USD
View
B+
Retailer 9
-
$14,897 NZD
£6,611 GBP
View
B
Retailer 10
-
$19,397 NZD
$10,932 USD
View
B
Retailer 11
-
$21,583 NZD
$12,164 USD
View
Most Expensive
B
Brilliant Earth
20635014A · Oct 31
$23,971 NZD
$13,510 USD
View
11 more retailers have this diamond
Prices start from $5,646 NZDSave up to $18,325 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
3.90ct Round
$5,646 NZD