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Radiant|Lab Grown|IGI

1.71ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG519238354

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

Certificate IGI LG519238354

Diamond specifications and retailer prices

From HK$4,268 HKD
$544 USD
As of October 23, 2026
Save HK$17,864 HKD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$22,132 HKD at MOH London · As of October 26, 2026
View at MOH London

About this 1.71ct lab-grown radiant diamond

This 1.71ct 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 LG519238354 or 519238354. Listed at 12 retailers as of October 23, 2026, with prices from HK$4,268 to HK$22,132, a HK$17,864 spread on the same certified stone. MOH London lists it at HK$22,132. 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

1.71
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519238354
Dimensions7.69 × 5.92 × 4.07 mm
L/W Ratio1.30
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
7.69 mm5.92 mm1.71 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519238354
Side View
Table 68.5%Crown 42.6°Girdle: MediumPavilion 30°Culet: NoneDepth 68.8%

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 23
Current: HK$22,132 HKD|Low: HK$3,413 HKD|High: HK$22,371 HKD|Avg: HK$9,340 HKD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9HK$4,786 HKD
Retailer 6HK$5,296 HKD
Retailer 10HK$5,320 HKD
Retailer 5HK$6,356 HKD
Retailer 3HK$7,687 HKD
Retailer 8HK$8,176 HKD
Retailer 2HK$8,250 HKD
Retailer 4HK$13,668 HKD
Retailer 7HK$13,927 HKD
MOH LondonHK$22,132 HKD

42 data points across 10 retailers

12 retailersHK$4,268 HKD to HK$22,132 HKD

A
Cheapest Retailer
-
HK$4,268 HKD
$544 USD
B+
Retailer 2
-
HK$4,786 HKD
$610 USD
View
B+
Retailer 3
-
HK$4,786 HKD
$610 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$5,296 HKD
$675 USD
View
B+
Retailer 5
-
HK$5,320 HKD
$678 USD
View
B+
Retailer 6
-
HK$6,356 HKD
$810 USD
View
B
Retailer 7
-
HK$7,687 HKD
€933 EUR
View
B
Retailer 8
-
HK$8,176 HKD
$1,042 USD
View
B
Retailer 9
-
HK$8,250 HKD
£828 GBP
View
B
Retailer 10
-
HK$13,668 HKD
$1,742 USD
View
B
Retailer 11
-
HK$13,927 HKD
$1,775 USD
View
Most Expensive
B
MOH London
LG519238354 · Oct 26
HK$22,132 HKD
£2,221 GBP
View
11 more retailers have this diamond
Prices start from HK$4,268 HKDSave up to HK$17,864 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
1.71ct Radiant
HK$4,268 HKD