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Radiant|Lab Grown|IGI

1.73ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG530214397

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

Certificate IGI LG530214397

Diamond specifications and retailer prices

From HK$1,703 HKD
$217 USD
As of October 27, 2026
Save HK$5,487 HKD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,141 HKD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.73ct lab-grown radiant diamond

This 1.73ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG530214397 or 530214397. Listed at 16 retailers as of October 27, 2026, with a 322% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.73
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530214397
Dimensions8.32 × 5.98 × 4.13 mm
L/W Ratio1.39
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
8.32 mm5.98 mm1.73 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG530214397
Side View
Table 65.5%Crown 43.6°Girdle: MediumPavilion 36.2°Culet: NoneDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: HK$9,141 HKD|Low: HK$1,703 HKD|High: HK$9,298 HKD|Avg: HK$4,653 HKD|-1.7%
Rare Carat
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
October 29, 2026
Retailer 15HK$1,703 HKD
Retailer 3HK$1,907 HKD
Retailer 13HK$1,969 HKD
Retailer 8HK$2,111 HKD
Retailer 9HK$2,713 HKD
Retailer 12HK$2,840 HKD
Retailer 2HK$3,897 HKD
Retailer 5HK$3,930 HKD
Retailer 10HK$4,174 HKD
Retailer 14HK$4,520 HKD
Retailer 11HK$6,771 HKD
Retailer 7HK$7,046 HKD
Retailer 4HK$7,189 HKD
Retailer 6HK$8,799 HKD
Rare CaratHK$9,141 HKD

41 data points across 15 retailers

16 retailersHK$1,703 HKD to HK$7,189 HKD

A
Cheapest Retailer
-
HK$1,703 HKD
$217 USD
A
Retailer 2
-
HK$1,907 HKD
$243 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,969 HKD
$251 USD
View
A
Retailer 4
-
HK$2,111 HKD
$269 USD
View
A
Retailer 5
-
HK$2,181 HKD
$278 USD
View
A
Retailer 6
-
HK$2,713 HKD
£272 GBP
View
B+
Retailer 7
-
HK$2,840 HKD
$362 USD
View
A
Retailer 8
-
HK$3,897 HKD
£391 GBP
View
B+
Retailer 9
-
HK$3,930 HKD
€477 EUR
View
B+
Retailer 10
-
HK$4,174 HKD
$532 USD
View
B+
Retailer 11
-
HK$4,520 HKD
$576 USD
View
B+
Retailer 12
-
HK$6,771 HKD
$863 USD
View
B
Retailer 13
-
HK$7,046 HKD
$898 USD
View
B
Retailer 14
-
HK$7,189 HKD
$916 USD
View
Retailer 15
-
HK$8,799 HKD
£883 GBP
View
Price last confirmed 8 days ago
Most Expensive
Rare Carat
KG108-45A · Oct 18
HK$9,141 HKD
$1,165 USD
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from HK$1,703 HKDSave up to HK$5,487 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
1.73ct Radiant
HK$1,703 HKD