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Radiant|Lab Grown|IGI

5.12ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG773639235

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

Certificate IGI LG773639235

Diamond specifications and retailer prices

From $12,654 AUD
$8,889 USD
As of October 31, 2026
Save $51,479 AUD (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $64,133 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.12ct lab-grown radiant diamond

This 5.12ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG773639235 or 773639235. Listed at 23 retailers as of October 31, 2026, with prices from $12,654 to $64,133, a $51,479 spread on the same certified stone. Do Amore Diamonds lists it at $64,133. 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

5.12
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773639235
Dimensions12.42 × 8.57 × 5.74 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
12.42 mm8.57 mm5.12 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773639235
Side View
Table 63.0%Crown 39.6°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 67.0%

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 31
Current: $64,133 AUD|Low: $12,654 AUD|High: $129,599 AUD|Avg: $35,094 AUD|-17.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 17
Retailer 18
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Retailer 21
October 30, 2026
Retailer 4$12,654 AUD
Retailer 12$14,316 AUD
Retailer 18$14,889 AUD
Retailer 9$16,034 AUD
Retailer 21$16,407 AUD
Retailer 5$16,606 AUD
Retailer 20$16,881 AUD
Retailer 14$17,180 AUD
Retailer 19$17,896 AUD
Retailer 3$18,001 AUD
Retailer 2$21,835 AUD
Retailer 11$26,273 AUD
Retailer 15$28,289 AUD
Retailer 17$29,165 AUD
Retailer 13$37,245 AUD
Retailer 16$40,245 AUD
Retailer 6$45,702 AUD
Retailer 8$54,553 AUD
Retailer 7$58,996 AUD
Do Amore Diamonds$64,133 AUD
Retailer 10$106,585 AUD

37 data points across 21 retailers

23 retailers$12,654 AUD to $64,133 AUD

A
Cheapest Retailer
-
$12,654 AUD
$8,889 USD
A
Retailer 2
-
$14,316 AUD
$10,056 USD
View
A
Retailer 3
-
$14,889 AUD
$10,459 USD
View
A
Retailer 4
-
$16,034 AUD
$11,263 USD
View
Final sale: no returns
A
Retailer 5
-
$16,407 AUD
$11,525 USD
View
A
Retailer 6
-
$16,606 AUD
$11,665 USD
View
Retailer 7
-
$16,608 AUD
$11,666 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$16,881 AUD
$11,858 USD
View
A
Retailer 9
-
$17,180 AUD
$12,068 USD
View
A
Retailer 10
-
$17,896 AUD
$12,571 USD
View
A
Retailer 11
-
$18,001 AUD
$12,645 USD
View
A
Retailer 12
-
$21,835 AUD
£12,077 GBP
View
A
Retailer 13
-
$26,273 AUD
£14,532 GBP
View
B+
Retailer 14
-
$28,289 AUD
£15,647 GBP
View
Retailer 15
-
$29,165 AUD
€19,511 EUR
View
Price last confirmed 8 days ago
B+
Retailer 16
-
$37,245 AUD
ZAR 422,660 ZAR
View
B+
Retailer 17
-
$40,245 AUD
$28,270 USD
View
B+
Retailer 18
-
$45,702 AUD
$32,103 USD
View
B+
Retailer 19
-
$50,926 AUD
$35,773 USD
View
B
Retailer 20
-
$54,553 AUD
$38,321 USD
View
B
Retailer 21
-
$58,996 AUD
$41,441 USD
View
Most Expensive
B
Do Amore Diamonds
27-86864EE0D · Oct 31
$64,133 AUD
$45,050 USD
View
21 more retailers have this diamond
Prices start from $12,654 AUDSave up to $51,479 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
5.12ct Radiant
$12,654 AUD