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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 HK$69,740 HKD
$8,889 USD
As of October 31, 2026
Save HK$283,708 HKD (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$353,449 HKD 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 HK$69,740 to HK$353,449, a HK$283,708 spread on the same certified stone. Do Amore Diamonds lists it at HK$353,449. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$353,449 HKD|Low: HK$69,740 HKD|High: HK$714,241 HKD|Avg: HK$191,866 HKD|-17.5%
Do Amore Diamonds
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
October 31, 2026
Retailer 4HK$69,740 HKD
Retailer 12HK$78,896 HKD
Retailer 18HK$82,058 HKD
Retailer 9HK$88,366 HKD
Retailer 21HK$90,422 HKD
Retailer 5HK$91,520 HKD
Retailer 20HK$93,034 HKD
Retailer 14HK$94,682 HKD
Retailer 19HK$98,628 HKD
Retailer 3HK$99,209 HKD
Retailer 13HK$120,337 HKD
Retailer 11HK$144,797 HKD
Retailer 16HK$155,907 HKD
Retailer 2HK$161,143 HKD
Retailer 15HK$205,264 HKD
Retailer 17HK$221,798 HKD
Retailer 6HK$251,871 HKD
Retailer 8HK$300,651 HKD
Retailer 7HK$325,137 HKD
Do Amore DiamondsHK$353,449 HKD
Retailer 10HK$587,408 HKD

37 data points across 21 retailers

23 retailersHK$69,740 HKD to HK$353,449 HKD

A
Cheapest Retailer
-
HK$69,740 HKD
$8,889 USD
A
Retailer 2
-
HK$78,896 HKD
$10,056 USD
View
A
Retailer 3
-
HK$82,058 HKD
$10,459 USD
View
A
Retailer 4
-
HK$88,366 HKD
$11,263 USD
View
Final sale: no returns
A
Retailer 5
-
HK$90,422 HKD
$11,525 USD
View
A
Retailer 6
-
HK$91,520 HKD
$11,665 USD
View
Retailer 7
-
HK$91,528 HKD
$11,666 USD
View
Price last confirmed 15 days ago
A
Retailer 8
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HK$93,034 HKD
$11,858 USD
View
A
Retailer 9
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HK$94,682 HKD
$12,068 USD
View
A
Retailer 10
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HK$98,628 HKD
$12,571 USD
View
A
Retailer 11
-
HK$99,209 HKD
$12,645 USD
View
A
Retailer 12
-
HK$120,337 HKD
£12,077 GBP
View
A
Retailer 13
-
HK$144,797 HKD
£14,532 GBP
View
B+
Retailer 14
-
HK$155,907 HKD
£15,647 GBP
View
B+
Retailer 15
-
HK$161,143 HKD
€19,561 EUR
View
B+
Retailer 16
-
HK$205,264 HKD
ZAR 422,660 ZAR
View
B+
Retailer 17
-
HK$221,798 HKD
$28,270 USD
View
B+
Retailer 18
-
HK$251,871 HKD
$32,103 USD
View
B+
Retailer 19
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HK$280,663 HKD
$35,773 USD
View
B
Retailer 20
-
HK$300,651 HKD
$38,321 USD
View
B
Retailer 21
-
HK$325,137 HKD
$41,441 USD
View
Most Expensive
B
Do Amore Diamonds
27-86864EE0D · Oct 31
HK$353,449 HKD
$45,050 USD
View
21 more retailers have this diamond
Prices start from HK$69,740 HKDSave up to HK$283,708 HKD

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
HK$69,740 HKD