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Radiant|Lab Grown|IGI

5.16ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG770633971

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

Certificate IGI LG770633971

Diamond specifications and retailer prices

From $12,580 AUD
$8,837 USD
As of October 30, 2026
Save $33,543 AUD (73%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $46,124 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.16ct lab-grown radiant diamond

This 5.16ct 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 LG770633971 or 770633971. Listed at 21 retailers as of October 30, 2026, with prices from $12,580 to $46,124, a $33,543 spread on the same certified stone. Taylor and Hart lists it at $46,124. 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

5.16
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770633971
Dimensions12.36 × 8.53 × 5.57 mm
L/W Ratio1.45
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
12.36 mm8.53 mm5.16 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770633971
Side View
Table 64.0%Crown 44.9°Girdle: MED-STKPavilion 34.7°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $23,178 AUD|Low: $12,580 AUD|High: $49,212 AUD|Avg: $21,766 AUD|-5.3%
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
Taylor and Hart
October 31, 2026
Retailer 9$12,580 AUD
Retailer 6$12,905 AUD
Retailer 14$13,083 AUD
Retailer 7$14,089 AUD
Retailer 17$14,450 AUD
Retailer 3$14,593 AUD
Retailer 2$15,577 AUD
Retailer 18$15,816 AUD
Retailer 15$15,974 AUD
Retailer 10$16,411 AUD
Retailer 16$16,881 AUD
Retailer 11$17,625 AUD
Retailer 8$20,915 AUD
Retailer 1$23,178 AUD
Retailer 5$26,693 AUD
Retailer 12$26,711 AUD
Retailer 13$30,327 AUD
Retailer 4$40,645 AUD
Taylor and Hart$46,124 AUD

43 data points across 19 retailers

21 retailers$12,580 AUD to $46,124 AUD

A
Cheapest Retailer
-
$12,580 AUD
$8,837 USD
A
Retailer 2
-
$12,905 AUD
$9,065 USD
View
A
Retailer 3
-
$13,083 AUD
$9,190 USD
View
A
Retailer 4
-
$14,089 AUD
$9,897 USD
View
Final sale: no returns
A
Retailer 5
-
$14,450 AUD
$10,150 USD
View
A
Retailer 6
-
$14,593 AUD
$10,251 USD
View
Retailer 7
-
$14,593 AUD
$10,251 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$15,577 AUD
$10,942 USD
View
A
Retailer 9
-
$15,816 AUD
$11,110 USD
View
A
Retailer 10
-
$15,974 AUD
$11,221 USD
View
A
Retailer 11
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$16,411 AUD
$11,528 USD
View
A
Retailer 12
-
$16,881 AUD
$11,858 USD
View
Retailer 13
-
$17,573 AUD
£9,720 GBP
View
Price last confirmed 22 days ago
A
Retailer 14
-
$17,625 AUD
£9,748 GBP
View
A
Retailer 15
-
$20,915 AUD
£11,568 GBP
View
A
Retailer 16
-
$23,178 AUD
€15,506 EUR
View
B+
Retailer 17
-
$26,693 AUD
$18,750 USD
View
A
Retailer 18
-
$26,711 AUD
£14,774 GBP
View
Retailer 19
-
$30,327 AUD
View
Price last confirmed 9 days ago
B+
Retailer 20
-
$40,645 AUD
$28,551 USD
View
Most Expensive
B
Taylor and Hart
Q9L5DMR · Oct 31
$46,124 AUD
$32,399 USD
View
20 more retailers have this diamond
Prices start from $12,580 AUDSave up to $33,543 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
5.16ct Radiant
$12,580 AUD