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Radiant|Lab Grown|IGI

3.15ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG745508340

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

Certificate IGI LG745508340

Diamond specifications and retailer prices

From HK$7,634 HKD
$973 USD
As of October 30, 2026
Save HK$60,153 HKD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$67,787 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.15ct lab-grown radiant diamond

This 3.15ct 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 LG745508340 or 745508340. Listed at 14 retailers as of October 30, 2026, with prices from HK$7,634 to HK$67,787, a HK$60,153 spread on the same certified stone. Do Amore Diamonds lists it at HK$67,787. 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

3.15
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745508340
Dimensions9.88 × 7.20 × 4.98 mm
L/W Ratio1.37
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
9.88 mm7.20 mm3.15 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745508340
Side View
Table 62.0%Crown 42.5°Girdle: STK-THKPavilion 35.3°Culet: NoneDepth 69.2%

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$67,787 HKD|Low: HK$7,634 HKD|High: HK$77,986 HKD|Avg: HK$28,230 HKD|-13.1%
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
October 31, 2026
Retailer 9HK$7,634 HKD
Retailer 12HK$8,489 HKD
Retailer 6HK$10,709 HKD
Retailer 8HK$11,117 HKD
Retailer 13HK$14,467 HKD
Retailer 2HK$14,475 HKD
Retailer 7HK$18,657 HKD
Retailer 11HK$18,728 HKD
Retailer 14HK$22,836 HKD
Retailer 4HK$26,449 HKD
Retailer 10HK$34,067 HKD
Retailer 3HK$42,838 HKD
Retailer 5HK$64,256 HKD
Do Amore DiamondsHK$67,787 HKD

32 data points across 14 retailers

14 retailersHK$7,634 HKD to HK$67,787 HKD

A+
Cheapest Retailer
-
HK$7,634 HKD
$973 USD
A
Retailer 2
-
HK$8,489 HKD
$1,082 USD
View
A
Retailer 3
-
HK$10,709 HKD
$1,365 USD
View
Final sale: no returns
A
Retailer 4
-
HK$11,117 HKD
$1,417 USD
View
A
Retailer 5
-
HK$14,467 HKD
$1,844 USD
View
A
Retailer 6
-
HK$14,475 HKD
$1,845 USD
View
A
Retailer 7
-
HK$18,657 HKD
$2,378 USD
View
A
Retailer 8
-
HK$18,728 HKD
$2,387 USD
View
Retailer 9
-
HK$22,836 HKD
A$4,478 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
HK$26,449 HKD
$3,371 USD
View
B+
Retailer 11
-
HK$34,067 HKD
£3,419 GBP
View
Retailer 12
-
HK$42,838 HKD
$5,460 USD
View
Price last confirmed 12 days ago
B
Retailer 13
-
HK$64,256 HKD
$8,190 USD
View
Most Expensive
B
Do Amore Diamonds
27-34F605E6C · Oct 31
HK$67,787 HKD
$8,640 USD
View
13 more retailers have this diamond
Prices start from HK$7,634 HKDSave up to HK$60,153 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+
3.15ct Radiant
HK$7,634 HKD