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Round|Lab Grown|IGI

4.18ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG691525873

Shape and cutting style on the report: Round brilliant

Certificate IGI LG691525873

Diamond specifications and retailer prices

From $5,825 NZD
£2,585 GBP
As of October 30, 2026
Save $38,941 NZD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $44,766 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown round diamond

This 4.18ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG691525873 or 691525873. Listed at 24 retailers as of October 30, 2026, with prices from $5,825 to $44,766, a $38,941 spread on the same certified stone. Do Amore Diamonds lists it at $44,766. 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

4.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691525873
Dimensions10.30 × 10.34 × 6.38 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
10.30 mm10.34 mm4.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691525873
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.9%

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 30
Current: $9,769 NZD|Low: $5,630 NZD|High: $41,625 NZD|Avg: $14,586 NZD|+0.1%
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
November 1, 2026
Retailer 8$5,825 NZD
Retailer 2$5,864 NZD
Retailer 3$6,803 NZD
Retailer 12$6,804 NZD
Retailer 14$9,382 NZD
Retailer 1$9,769 NZD
Retailer 5$10,559 NZD
Retailer 11$11,890 NZD
Retailer 9$15,980 NZD
Retailer 10$16,170 NZD
Retailer 13$16,283 NZD
Retailer 4$17,111 NZD
Retailer 6$25,882 NZD
Retailer 7$35,912 NZD

39 data points across 14 retailers

24 retailers$5,825 NZD to $44,766 NZD

A
Cheapest Retailer
-
$5,825 NZD
£2,585 GBP
A
Retailer 2
-
$5,864 NZD
$3,305 USD
View
A
Retailer 3
-
$6,380 NZD
$3,596 USD
View
A
Retailer 4
-
$6,568 NZD
$3,702 USD
View
Final sale: no returns
A
Retailer 5
-
$6,803 NZD
$3,834 USD
View
Retailer 6
-
$6,803 NZD
$3,834 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$6,804 NZD
$3,835 USD
View
A
Retailer 8
-
$6,813 NZD
$3,840 USD
View
A
Retailer 9
-
$6,883 NZD
$3,879 USD
View
A
Retailer 10
-
$9,382 NZD
$5,288 USD
View
A
Retailer 11
-
$9,382 NZD
$5,288 USD
View
A
Retailer 12
-
$9,769 NZD
£4,335 GBP
View
A
Retailer 13
-
$10,559 NZD
$5,951 USD
View
B+
Retailer 14
-
$11,890 NZD
€6,382 EUR
View
B+
Retailer 15
-
$15,980 NZD
ZAR 145,498 ZAR
View
B+
Retailer 16
-
$16,170 NZD
£7,176 GBP
View
Retailer 17
-
$16,283 NZD
A$14,119 AUD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
$17,111 NZD
$9,644 USD
View
B+
Retailer 19
-
$17,981 NZD
$10,134 USD
View
B
Retailer 20
-
$25,882 NZD
SGD 19,712 SGD
View
B
Retailer 21
-
$26,491 NZD
$14,930 USD
View
B
Retailer 22
-
$35,912 NZD
$20,240 USD
View
B
Retailer 23
-
$40,348 NZD
$22,740 USD
View
Most Expensive
B
Do Amore Diamonds
23-691525873 · Oct 31
$44,766 NZD
$25,230 USD
View
23 more retailers have this diamond
Prices start from $5,825 NZDSave up to $38,941 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
4.18ct Round
$5,825 NZD