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Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG719530985

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

Certificate IGI LG719530985

Diamond specifications and retailer prices

From HK$9,635 HKD
$1,228 USD
As of October 30, 2026
Save HK$45,284 HKD (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$96,188 HKD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

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 LG719530985 or 719530985. Listed at 23 retailers as of October 30, 2026, with a 470% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle40.2°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG719530985
Dimensions10.92 × 7.29 × 4.61 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.92 mm7.29 mm3.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG719530985
Side View
Table 65.0%Crown 40.2°Girdle: MED-STKPavilion 32.4°Culet: NoneDepth 63.2%

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$96,188 HKD|Low: HK$9,635 HKD|High: HK$96,188 HKD|Avg: HK$27,540 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 31, 2026
Retailer 14HK$9,635 HKD
Retailer 12HK$10,482 HKD
Retailer 7HK$11,172 HKD
Retailer 19HK$12,514 HKD
Retailer 10HK$13,149 HKD
Retailer 22HK$13,997 HKD
Retailer 18HK$15,990 HKD
Retailer 16HK$16,088 HKD
Retailer 13HK$17,811 HKD
Retailer 4HK$20,948 HKD
Retailer 11HK$21,411 HKD
Retailer 5HK$24,887 HKD
Retailer 3HK$25,279 HKD
Retailer 17HK$25,949 HKD
Retailer 9HK$27,022 HKD
Retailer 21HK$30,959 HKD
Retailer 20HK$35,950 HKD
Retailer 8HK$39,183 HKD
Retailer 6HK$40,531 HKD
Retailer 15HK$46,211 HKD
Retailer 2HK$54,919 HKD
Brilliant EarthHK$96,188 HKD

31 data points across 22 retailers

23 retailersHK$9,635 HKD to HK$54,919 HKD

A+
Cheapest Retailer
-
HK$9,635 HKD
$1,228 USD
A
Retailer 2
-
HK$10,482 HKD
$1,336 USD
View
A
Retailer 3
-
HK$11,172 HKD
$1,424 USD
View
A
Retailer 4
-
HK$12,514 HKD
$1,595 USD
View
A
Retailer 5
-
HK$13,149 HKD
$1,676 USD
View
Retailer 6
-
HK$13,361 HKD
$1,703 USD
View
Price last confirmed 18 days ago
A
Retailer 7
-
HK$13,997 HKD
$1,784 USD
View
Final sale: no returns
A
Retailer 8
-
HK$15,990 HKD
$2,038 USD
View
A
Retailer 9
-
HK$16,088 HKD
£1,615 GBP
View
A
Retailer 10
-
HK$17,811 HKD
€2,162 EUR
View
A
Retailer 11
-
HK$20,948 HKD
$2,670 USD
View
A
Retailer 12
-
HK$21,411 HKD
$2,729 USD
View
A
Retailer 13
-
HK$24,887 HKD
$3,172 USD
View
Retailer 14
-
HK$25,279 HKD
A$4,957 AUD
View
Price last confirmed 9 days ago
A
Retailer 15
-
HK$25,949 HKD
ZAR 53,432 ZAR
View
A
Retailer 16
-
HK$27,022 HKD
£2,712 GBP
View
B+
Retailer 17
-
HK$30,959 HKD
$3,946 USD
View
B+
Retailer 18
-
HK$35,950 HKD
£3,608 GBP
View
B+
Retailer 19
-
HK$39,183 HKD
$4,994 USD
View
B+
Retailer 20
-
HK$40,531 HKD
$5,166 USD
View
Retailer 21
-
HK$46,211 HKD
$5,890 USD
View
Price last confirmed 26 days ago
B+
Retailer 22
-
HK$54,919 HKD
A$10,769 AUD
View
Most Expensive
Brilliant Earth
20114891A · Oct 18
HK$96,188 HKD
$12,260 USD
View
Price last confirmed 12 days ago
22 more retailers have this diamond
Prices start from HK$9,635 HKDSave up to HK$45,284 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$9,635 HKD