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Round|Lab Grown|IGI

4.50ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG724501464

Shape and cutting style on the report: Round brilliant

Certificate IGI LG724501464

Diamond specifications and retailer prices

From $56,368 NZD
£25,015 GBP
As of October 30, 2026
Save $2,485 NZD (4%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $73,390 NZD at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 4.5ct lab-grown round diamond

This 4.5ct 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 LG724501464 or 724501464. Listed at 18 retailers as of October 30, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

4.50
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG724501464
Dimensions10.55 × 10.46 × 6.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.55 mm10.46 mm4.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG724501464
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $73,390 NZD|Low: $56,179 NZD|High: $156,850 NZD|Avg: $83,986 NZD|-2.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2$56,368 NZD
Retailer 11$58,854 NZD
Retailer 8$69,735 NZD
Retailer 10$70,156 NZD
Retailer 6$71,589 NZD
Retailer 7$72,665 NZD
77 Diamonds$73,390 NZD
Retailer 9$91,007 NZD
Retailer 4$91,279 NZD
Retailer 3$152,987 NZD
Retailer 5$156,850 NZD

35 data points across 11 retailers

18 retailers$56,368 NZD to $58,854 NZD

B+
Cheapest Retailer
-
$56,368 NZD
£25,015 GBP
Retailer 2
-
$56,749 NZD
$31,984 USD
View
Price last confirmed 34 days ago
Retailer 3
-
$56,749 NZD
$31,984 USD
View
Price last confirmed 13 days ago
B
Retailer 4
-
$58,854 NZD
$33,170 USD
View
Retailer 5
-
$62,642 NZD
$35,305 USD
View
Price last confirmed 13 days ago
Retailer 6
-
$62,642 NZD
$35,305 USD
View
Price last confirmed 33 days ago
Retailer 7
-
$63,142 NZD
$35,587 USD
View
Price last confirmed 38 days ago
Retailer 8
-
$69,735 NZD
$39,303 USD
View
Price under review
Retailer 9
-
$70,156 NZD
$39,540 USD
View
Price under review
Final sale: no returns
Retailer 10
-
$71,589 NZD
$40,348 USD
View
Price under review
Retailer 11
-
$71,662 NZD
$40,389 USD
View
Price under review
Retailer 12
-
$72,665 NZD
$40,954 USD
View
Price under review
Retailer 13
-
$72,665 NZD
$40,954 USD
View
Price under review
Most Expensive
77 Diamonds
RBPUIFS3VPSFPPZ · Oct 31
$73,390 NZD
£32,569 GBP
View
Price under review
13 more retailers have this diamond
Prices start from $56,368 NZDSave up to $2,485 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.

B+
4.50ct Round
$56,368 NZD