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Radiant|Lab Grown|IGI

5.09ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508855

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG754508855

Diamond specifications and retailer prices

From $13,071 NZD
$7,367 USD
As of October 30, 2026
Save $47,248 NZD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $60,320 NZD at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 5.09ct lab-grown radiant diamond

This 5.09ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508855 or 754508855. Listed at 13 retailers as of October 30, 2026, with prices from $13,071 to $60,320, a $47,248 spread on the same certified stone. Michael Trio lists it at $60,320. 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

5.09
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508855
Dimensions8.73 × 8.73 × 5.67 mm
L/W Ratio1.00
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
8.73 mm8.73 mm5.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508855
Side View
Table 65.0%Crown 42.7°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 64.9%

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: $60,320 NZD|Low: $13,071 NZD|High: $65,140 NZD|Avg: $31,566 NZD|-7.4%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 8$13,071 NZD
Retailer 7$13,534 NZD
Retailer 13$16,457 NZD
Retailer 10$17,715 NZD
Retailer 4$18,275 NZD
Retailer 6$19,928 NZD
Retailer 9$26,295 NZD
Retailer 2$27,045 NZD
Retailer 12$31,892 NZD
Retailer 3$42,461 NZD
Retailer 5$48,042 NZD
Retailer 11$52,906 NZD
Michael Trio$60,320 NZD

27 data points across 13 retailers

13 retailers$13,071 NZD to $60,320 NZD

A
Cheapest Retailer
-
$13,071 NZD
$7,367 USD
A
Retailer 2
-
$13,534 NZD
$7,628 USD
View
A
Retailer 3
-
$16,457 NZD
$9,275 USD
View
A
Retailer 4
-
$17,715 NZD
HK$78,000 HKD
View
A
Retailer 5
-
$18,275 NZD
$10,300 USD
View
A
Retailer 6
-
$19,928 NZD
£8,844 GBP
View
A
Retailer 7
-
$26,295 NZD
$14,820 USD
View
A
Retailer 8
-
$27,045 NZD
€14,517 EUR
View
A
Retailer 9
-
$31,892 NZD
£14,153 GBP
View
Retailer 10
-
$42,461 NZD
A$36,817 AUD
View
Price last confirmed 23 days ago
B+
Retailer 11
-
$48,042 NZD
$27,077 USD
View
B
Retailer 12
-
$52,906 NZD
$29,818 USD
View
Most Expensive
B
Michael Trio
5984198460 · Oct 31
$60,320 NZD
SGD 45,941 SGD
View
12 more retailers have this diamond
Prices start from $13,071 NZDSave up to $47,248 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
5.09ct Radiant
$13,071 NZD