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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 $5,108 NZD
$2,879 USD
As of October 29, 2026
Save $15,537 NZD (75%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $20,645 NZD at Taylor and Hart · As of October 31, 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 $5,108 to $20,645, a $15,537 spread on the same certified stone. Taylor and Hart lists it at $20,645. 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: $5,817 NZD|Low: $5,108 NZD|High: $22,001 NZD|Avg: $10,289 NZD|-7.3%
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
Taylor and Hart
November 1, 2026
Retailer 8$5,108 NZD
Retailer 14$5,557 NZD
Retailer 5$5,720 NZD
Retailer 1$5,817 NZD
Retailer 13$5,926 NZD
Retailer 18$5,926 NZD
Retailer 9$6,112 NZD
Retailer 3$7,638 NZD
Retailer 15$7,670 NZD
Retailer 12$7,974 NZD
Retailer 2$8,146 NZD
Retailer 7$8,907 NZD
Retailer 17$9,436 NZD
Retailer 16$12,614 NZD
Retailer 11$12,748 NZD
Retailer 4$14,180 NZD
Retailer 6$15,524 NZD
Retailer 10$16,026 NZD
Retailer 19$16,482 NZD
Taylor and Hart$20,645 NZD

25 data points across 20 retailers

21 retailers$5,108 NZD to $20,645 NZD

A
Cheapest Retailer
-
$5,108 NZD
$2,879 USD
A
Retailer 2
-
$5,557 NZD
$3,132 USD
View
A
Retailer 3
-
$5,720 NZD
$3,224 USD
View
Final sale: no returns
A
Retailer 4
-
$5,817 NZD
£2,581 GBP
View
A
Retailer 5
-
$5,926 NZD
$3,340 USD
View
A
Retailer 6
-
$5,926 NZD
$3,340 USD
View
A
Retailer 7
-
$6,112 NZD
$3,445 USD
View
Retailer 8
-
$6,315 NZD
$3,559 USD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$7,638 NZD
$4,305 USD
View
A
Retailer 10
-
$7,670 NZD
$4,323 USD
View
A
Retailer 11
-
$7,974 NZD
£3,539 GBP
View
A
Retailer 12
-
$8,146 NZD
$4,591 USD
View
A
Retailer 13
-
$8,907 NZD
$5,020 USD
View
A
Retailer 14
-
$9,436 NZD
€5,065 EUR
View
B+
Retailer 15
-
$12,614 NZD
ZAR 114,849 ZAR
View
Retailer 16
-
$12,748 NZD
$7,185 USD
View
Price last confirmed 14 days ago
B+
Retailer 17
-
$14,180 NZD
$7,992 USD
View
B+
Retailer 18
-
$15,524 NZD
$8,749 USD
View
B+
Retailer 19
-
$16,026 NZD
£7,112 GBP
View
B+
Retailer 20
-
$16,482 NZD
$9,290 USD
View
Most Expensive
B
Taylor and Hart
YB4GNG4 · Oct 31
$20,645 NZD
$11,636 USD
View
20 more retailers have this diamond
Prices start from $5,108 NZDSave up to $15,537 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
4.03ct Round
$5,108 NZD