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Radiant|Lab Grown|IGI

5.10ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG754561978

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

Certificate IGI LG754561978

Diamond specifications and retailer prices

From $11,201 AUD
$7,868 USD
As of October 30, 2026
Save $31,305 AUD (74%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $42,506 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.1ct lab-grown radiant diamond

This 5.1ct 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 LG754561978 or 754561978. Listed at 23 retailers as of October 30, 2026, with prices from $11,201 to $42,506, a $31,305 spread on the same certified stone. Taylor and Hart lists it at $42,506. 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

5.10
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754561978
Dimensions12.47 × 8.54 × 5.47 mm
L/W Ratio1.46
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
12.47 mm8.54 mm5.10 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754561978
Side View
Table 66.0%Crown 40.6°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 64.1%

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: $24,118 AUD|Low: $11,201 AUD|High: $42,506 AUD|Avg: $22,246 AUD|-12.9%
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
Retailer 20
Retailer 21
Taylor and Hart
November 1, 2026
Retailer 3$11,201 AUD
Retailer 21$11,538 AUD
Retailer 11$12,545 AUD
Retailer 7$12,992 AUD
Retailer 19$13,026 AUD
Retailer 15$13,372 AUD
Retailer 13$13,722 AUD
Retailer 20$14,452 AUD
Retailer 9$14,612 AUD
Retailer 5$14,830 AUD
Retailer 12$15,040 AUD
Retailer 10$15,233 AUD
Retailer 17$15,891 AUD
Retailer 8$18,615 AUD
Retailer 18$23,044 AUD
Retailer 2$23,766 AUD
Retailer 1$24,118 AUD
Retailer 6$26,397 AUD
Retailer 14$31,772 AUD
Retailer 16$32,368 AUD
Retailer 4$36,177 AUD
Taylor and Hart$42,506 AUD

29 data points across 22 retailers

23 retailers$11,201 AUD to $42,506 AUD

A
Cheapest Retailer
-
$11,201 AUD
$7,868 USD
A
Retailer 2
-
$11,538 AUD
$8,105 USD
View
A
Retailer 3
-
$12,545 AUD
$8,812 USD
View
Final sale: no returns
A
Retailer 4
-
$12,992 AUD
$9,126 USD
View
A
Retailer 5
-
$13,026 AUD
$9,150 USD
View
A
Retailer 6
-
$13,372 AUD
£7,396 GBP
View
A
Retailer 7
-
$13,722 AUD
$9,639 USD
View
A
Retailer 8
-
$14,452 AUD
$10,152 USD
View
A
Retailer 9
-
$14,612 AUD
$10,264 USD
View
A
Retailer 10
-
$14,830 AUD
$10,417 USD
View
A
Retailer 11
-
$15,040 AUD
$10,565 USD
View
A
Retailer 12
-
$15,233 AUD
$10,700 USD
View
Retailer 13
-
$15,305 AUD
$10,751 USD
View
Price last confirmed 16 days ago
A
Retailer 14
-
$15,891 AUD
£8,790 GBP
View
A
Retailer 15
-
$18,615 AUD
£10,296 GBP
View
A
Retailer 16
-
$23,044 AUD
€15,416 EUR
View
A
Retailer 17
-
$23,766 AUD
$16,694 USD
View
A
Retailer 18
-
$24,118 AUD
£13,340 GBP
View
A
Retailer 19
-
$26,397 AUD
ZAR 299,555 ZAR
View
Retailer 20
-
$31,772 AUD
View
Price last confirmed 9 days ago
B+
Retailer 21
-
$32,368 AUD
View
B+
Retailer 22
-
$36,177 AUD
$25,412 USD
View
Most Expensive
B
Taylor and Hart
AC4DQ7Q · Oct 31
$42,506 AUD
$29,858 USD
View
22 more retailers have this diamond
Prices start from $11,201 AUDSave up to $31,305 AUD

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
5.10ct Radiant
$11,201 AUD