CaratHunter
Plans
Radiant|Lab Grown|IGI

3.50ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG698530204

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

Certificate IGI LG698530204

Diamond specifications and retailer prices

From HK$3,727 HKD
$475 USD
As of October 30, 2026
Save HK$23,812 HKD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$27,538 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.5ct lab-grown radiant diamond

This 3.5ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG698530204 or 698530204. Listed at 18 retailers as of October 30, 2026, with prices from HK$3,727 to HK$27,538, a HK$23,812 spread on the same certified stone. Brilliant Earth lists it at HK$27,538. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.50
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG698530204
Dimensions10.51 × 7.47 × 5.04 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.51 mm7.47 mm3.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG698530204
Side View
Table 70.0%Crown 49.2°Girdle: Slightly ThickPavilion 35.5°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
A
Excellent
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$27,538 HKD|Low: HK$4,174 HKD|High: HK$44,328 HKD|Avg: HK$13,061 HKD|-37.9%
Brilliant Earth
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
October 31, 2026
Retailer 7HK$4,174 HKD
Retailer 14HK$4,621 HKD
Retailer 15HK$5,021 HKD
Retailer 10HK$5,727 HKD
Retailer 4HK$6,355 HKD
Retailer 12HK$6,722 HKD
Retailer 9HK$7,672 HKD
Retailer 2HK$10,380 HKD
Retailer 16HK$10,504 HKD
Retailer 5HK$13,652 HKD
Retailer 3HK$14,648 HKD
Retailer 8HK$15,089 HKD
Retailer 6HK$16,254 HKD
Retailer 13HK$17,068 HKD
Retailer 11HK$26,126 HKD
Brilliant EarthHK$27,538 HKD

43 data points across 16 retailers

18 retailersHK$3,727 HKD to HK$27,538 HKD

A
Cheapest Retailer
-
HK$3,727 HKD
$475 USD
A
Retailer 2
-
HK$4,174 HKD
$532 USD
View
Final sale: no returns
A
Retailer 3
-
HK$4,174 HKD
$532 USD
View
A
Retailer 4
-
HK$4,621 HKD
$589 USD
View
A
Retailer 5
-
HK$5,021 HKD
View
A
Retailer 6
-
HK$5,727 HKD
$730 USD
View
B+
Retailer 7
-
HK$6,355 HKD
$810 USD
View
Retailer 8
-
HK$6,722 HKD
€816 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
HK$7,672 HKD
£770 GBP
View
B+
Retailer 10
-
HK$10,380 HKD
$1,323 USD
View
B+
Retailer 11
-
HK$10,504 HKD
$1,339 USD
View
B
Retailer 12
-
HK$13,652 HKD
$1,740 USD
View
B+
Retailer 13
-
HK$14,648 HKD
SGD 2,523 SGD
View
B+
Retailer 14
-
HK$15,089 HKD
$1,923 USD
View
B
Retailer 15
-
HK$16,254 HKD
$2,072 USD
View
Retailer 16
-
HK$17,068 HKD
£1,713 GBP
View
Price last confirmed 9 days ago
B
Retailer 17
-
HK$26,126 HKD
$3,330 USD
View
Most Expensive
B
Brilliant Earth
20386828A · Oct 30
HK$27,538 HKD
$3,510 USD
View
17 more retailers have this diamond
Prices start from HK$3,727 HKDSave up to HK$23,812 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
3.50ct Radiant
HK$3,727 HKD