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Radiant|Lab Grown|IGI

3.12ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG828684106

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

Certificate IGI LG828684106

Diamond specifications and retailer prices

From HK$7,650 HKD
$975 USD
As of October 30, 2026
Save HK$23,377 HKD (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$37,753 HKD at Novita Diamonds · As of October 5, 2026
View at Novita Diamonds

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828684106 or 828684106. Listed at 16 retailers as of October 30, 2026, with a 306% 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

3.12
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828684106
Dimensions11.02 × 7.00 × 4.66 mm
L/W Ratio1.57
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.02 mm7.00 mm3.12 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828684106
Side View
Table 65.0%Crown 42.2°Girdle: MED-STKPavilion 33.9°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$31,026 HKD|Low: HK$7,650 HKD|High: HK$32,031 HKD|Avg: HK$18,225 HKD|-3.1%
Retailer 1
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$7,650 HKD
Retailer 10HK$8,750 HKD
Retailer 4HK$9,650 HKD
Retailer 8HK$11,337 HKD
Retailer 5HK$12,126 HKD
Retailer 11HK$12,190 HKD
Retailer 6HK$18,175 HKD
Retailer 7HK$18,218 HKD
Retailer 2HK$18,405 HKD
Retailer 13HK$24,016 HKD
Retailer 14HK$27,504 HKD
Retailer 12HK$28,472 HKD
Retailer 3HK$29,872 HKD
Retailer 1HK$31,026 HKD

18 data points across 14 retailers

16 retailersHK$7,650 HKD to HK$31,026 HKD

A+
Cheapest Retailer
-
HK$7,650 HKD
$975 USD
Final sale: no returns
A
Retailer 2
-
HK$8,750 HKD
£878 GBP
View
A
Retailer 3
-
HK$9,650 HKD
$1,230 USD
View
A
Retailer 4
-
HK$11,337 HKD
$1,445 USD
View
Retailer 5
-
HK$12,126 HKD
€1,472 EUR
View
Price last confirmed 7 days ago
A
Retailer 6
-
HK$12,190 HKD
£1,223 GBP
View
Retailer 7
-
HK$18,175 HKD
A$3,564 AUD
View
Price last confirmed 9 days ago
A
Retailer 8
-
HK$18,218 HKD
$2,322 USD
View
A
Retailer 9
-
HK$18,405 HKD
ZAR 37,897 ZAR
View
A
Retailer 10
-
HK$24,016 HKD
$3,061 USD
View
B+
Retailer 11
-
HK$25,867 HKD
$3,297 USD
View
B+
Retailer 12
-
HK$27,504 HKD
$3,506 USD
View
B+
Retailer 13
-
HK$28,472 HKD
$3,629 USD
View
B+
Retailer 14
-
HK$29,872 HKD
£2,998 GBP
View
B+
Retailer 15
-
HK$31,026 HKD
SGD 5,344 SGD
View
Most Expensive
Novita Diamonds
cert_828684106 · Oct 5
HK$37,753 HKD
A$7,403 AUD
View
Price last confirmed 26 days ago
15 more retailers have this diamond
Prices start from HK$7,650 HKDSave up to HK$23,377 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$7,650 HKD