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Radiant|Lab Grown|IGI

3.12ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG731557448

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

Certificate IGI LG731557448

Diamond specifications and retailer prices

From HK$7,673 HKD
$978 USD
As of October 30, 2026
Save HK$60,428 HKD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$68,101 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731557448 or 731557448. Listed at 17 retailers as of October 30, 2026, with prices from HK$7,673 to HK$68,101, a HK$60,428 spread on the same certified stone. Do Amore Diamonds lists it at HK$68,101. 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

3.12
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731557448
Dimensions10.23 × 7.31 × 4.87 mm
L/W Ratio1.40
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
10.23 mm7.31 mm3.12 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731557448
Side View
Table 64.0%Crown 44.3°Girdle: Slightly ThickPavilion 34.3°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
A+
Exceptional
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: HK$68,101 HKD|Low: HK$7,673 HKD|High: HK$82,223 HKD|Avg: HK$27,260 HKD|-17.2%
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
November 1, 2026
Retailer 16HK$7,673 HKD
Retailer 5HK$8,513 HKD
Retailer 7HK$10,239 HKD
Retailer 15HK$10,309 HKD
Retailer 9HK$10,780 HKD
Retailer 10HK$14,224 HKD
Retailer 13HK$16,031 HKD
Retailer 4HK$18,406 HKD
Retailer 17HK$18,484 HKD
Retailer 14HK$19,175 HKD
Retailer 11HK$22,179 HKD
Retailer 3HK$25,418 HKD
Retailer 2HK$33,310 HKD
Retailer 6HK$42,406 HKD
Retailer 12HK$53,909 HKD
Retailer 8HK$66,453 HKD
Do Amore DiamondsHK$68,101 HKD

36 data points across 17 retailers

17 retailersHK$7,673 HKD to HK$68,101 HKD

A+
Cheapest Retailer
-
HK$7,673 HKD
$978 USD
A
Retailer 2
-
HK$8,513 HKD
$1,085 USD
View
A
Retailer 3
-
HK$10,239 HKD
$1,305 USD
View
A
Retailer 4
-
HK$10,309 HKD
$1,314 USD
View
A
Retailer 5
-
HK$10,780 HKD
$1,374 USD
View
Final sale: no returns
A
Retailer 6
-
HK$14,224 HKD
$1,813 USD
View
A
Retailer 7
-
HK$16,031 HKD
€1,946 EUR
View
A
Retailer 8
-
HK$18,406 HKD
$2,346 USD
View
A
Retailer 9
-
HK$18,484 HKD
$2,356 USD
View
A
Retailer 10
-
HK$19,175 HKD
$2,444 USD
View
A
Retailer 11
-
HK$22,179 HKD
A$4,349 AUD
View
A
Retailer 12
-
HK$25,418 HKD
$3,240 USD
View
B+
Retailer 13
-
HK$33,310 HKD
£3,343 GBP
View
Retailer 14
-
HK$42,406 HKD
$5,405 USD
View
Price last confirmed 11 days ago
B
Retailer 15
-
HK$53,909 HKD
A$10,571 AUD
View
B
Retailer 16
-
HK$66,453 HKD
$8,470 USD
View
Most Expensive
B
Do Amore Diamonds
27-B48F5ABFF · Oct 31
HK$68,101 HKD
$8,680 USD
View
16 more retailers have this diamond
Prices start from HK$7,673 HKDSave up to HK$60,428 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+
3.12ct Radiant
HK$7,673 HKD