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Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG732516320

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

Certificate IGI LG732516320

Diamond specifications and retailer prices

From HK$7,814 HKD
$996 USD
As of October 30, 2026
Save HK$61,542 HKD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$69,356 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.18ct lab-grown radiant diamond

This 3.18ct 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 LG732516320 or 732516320. Listed at 18 retailers as of October 30, 2026, with prices from HK$7,814 to HK$69,356, a HK$61,542 spread on the same certified stone. Do Amore Diamonds lists it at HK$69,356. 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

3.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732516320
Dimensions10.24 × 7.30 × 4.82 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
10.24 mm7.30 mm3.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732516320
Side View
Table 65.0%Crown 45.1°Girdle: STK-THKPavilion 33.6°Culet: NoneDepth 66.0%

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$69,356 HKD|Low: HK$7,814 HKD|High: HK$83,792 HKD|Avg: HK$27,839 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
October 31, 2026
Retailer 11HK$7,814 HKD
Retailer 17HK$8,677 HKD
Retailer 6HK$10,435 HKD
Retailer 10HK$10,482 HKD
Retailer 9HK$10,968 HKD
Retailer 16HK$14,766 HKD
Retailer 3HK$16,624 HKD
Retailer 15HK$18,751 HKD
Retailer 12HK$19,159 HKD
Retailer 2HK$19,536 HKD
Retailer 4HK$23,515 HKD
Retailer 14HK$25,860 HKD
Retailer 13HK$34,107 HKD
Retailer 5HK$43,230 HKD
Retailer 7HK$55,592 HKD
Retailer 8HK$67,708 HKD
Do Amore DiamondsHK$69,356 HKD

36 data points across 17 retailers

18 retailersHK$7,814 HKD to HK$69,356 HKD

A+
Cheapest Retailer
-
HK$7,814 HKD
$996 USD
A
Retailer 2
-
HK$8,677 HKD
$1,106 USD
View
A
Retailer 3
-
HK$10,435 HKD
$1,330 USD
View
A
Retailer 4
-
HK$10,482 HKD
$1,336 USD
View
A
Retailer 5
-
HK$10,968 HKD
$1,398 USD
View
Final sale: no returns
A
Retailer 6
-
HK$14,766 HKD
$1,882 USD
View
Retailer 7
-
HK$16,624 HKD
€2,018 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
HK$18,751 HKD
$2,390 USD
View
A
Retailer 9
-
HK$19,159 HKD
$2,442 USD
View
A
Retailer 10
-
HK$19,536 HKD
$2,490 USD
View
Retailer 11
-
HK$23,515 HKD
A$4,611 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
HK$25,860 HKD
$3,296 USD
View
B+
Retailer 13
-
HK$34,107 HKD
£3,423 GBP
View
Retailer 14
-
HK$43,230 HKD
$5,510 USD
View
Price last confirmed 12 days ago
Retailer 15
-
HK$55,592 HKD
A$10,901 AUD
View
Price last confirmed 22 days ago
Retailer 16
-
HK$56,855 HKD
$7,247 USD
View
B
Retailer 17
-
HK$67,708 HKD
$8,630 USD
View
Most Expensive
B
Do Amore Diamonds
27-E6BF10FE9 · Oct 31
HK$69,356 HKD
$8,840 USD
View
17 more retailers have this diamond
Prices start from HK$7,814 HKDSave up to HK$61,542 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+
3.18ct Radiant
HK$7,814 HKD