CaratHunter
Plans
Radiant|Lab Grown|IGI

1.71ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818654290

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

Certificate IGI LG818654290

Diamond specifications and retailer prices

From HK$4,676 HKD
$596 USD
As of October 30, 2026
Save HK$27,334 HKD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$32,010 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654290 or 818654290. Listed at 22 retailers as of October 28, 2026, with prices from HK$4,676 to HK$32,010, a HK$27,334 spread on the same certified stone. Rare Carat lists it at HK$32,010. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654290
Dimensions8.08 × 5.93 × 4.08 mm
L/W Ratio1.36
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
8.08 mm5.93 mm1.71 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654290
Side View
Table 63.0%Crown 42.2°Girdle: MED-STKPavilion 35.7°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 30
Current: HK$32,010 HKD|Low: HK$4,676 HKD|High: HK$42,994 HKD|Avg: HK$14,837 HKD|-1.1%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 12HK$4,676 HKD
Retailer 19HK$5,233 HKD
Retailer 8HK$5,429 HKD
Retailer 11HK$5,798 HKD
Retailer 18HK$6,826 HKD
Retailer 21HK$7,508 HKD
Retailer 4HK$8,905 HKD
Retailer 2HK$8,992 HKD
Retailer 3HK$9,457 HKD
Retailer 17HK$9,963 HKD
Retailer 6HK$10,694 HKD
Retailer 5HK$12,561 HKD
Retailer 9HK$15,244 HKD
Retailer 7HK$16,859 HKD
Retailer 14HK$18,753 HKD
Retailer 13HK$19,018 HKD
Retailer 10HK$19,711 HKD
Retailer 20HK$20,744 HKD
Retailer 16HK$25,299 HKD
Retailer 15HK$31,304 HKD
Rare CaratHK$32,010 HKD

31 data points across 21 retailers

22 retailersHK$4,676 HKD to HK$32,010 HKD

A
Cheapest Retailer
-
HK$4,676 HKD
$596 USD
A
Retailer 2
-
HK$5,233 HKD
$667 USD
View
A
Retailer 3
-
HK$5,429 HKD
$692 USD
View
Final sale: no returns
Retailer 4
-
HK$5,790 HKD
$738 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
HK$5,798 HKD
$739 USD
View
A
Retailer 6
-
HK$6,826 HKD
$870 USD
View
A
Retailer 7
-
HK$7,508 HKD
$957 USD
View
A
Retailer 8
-
HK$8,905 HKD
$1,135 USD
View
A
Retailer 9
-
HK$8,992 HKD
£902 GBP
View
Retailer 10
-
HK$9,457 HKD
€1,148 EUR
View
Price last confirmed 8 days ago
B+
Retailer 11
-
HK$9,963 HKD
ZAR 20,514 ZAR
View
B+
Retailer 12
-
HK$10,694 HKD
$1,363 USD
View
B+
Retailer 13
-
HK$12,561 HKD
$1,601 USD
View
B+
Retailer 14
-
HK$15,244 HKD
$1,943 USD
View
B+
Retailer 15
-
HK$16,859 HKD
£1,692 GBP
View
B+
Retailer 16
-
HK$18,753 HKD
$2,390 USD
View
B+
Retailer 17
-
HK$19,018 HKD
$2,424 USD
View
B+
Retailer 18
-
HK$19,711 HKD
SGD 3,395 SGD
View
B
Retailer 19
-
HK$20,744 HKD
$2,644 USD
View
B
Retailer 20
-
HK$25,299 HKD
£2,539 GBP
View
B
Retailer 21
-
HK$31,304 HKD
$3,990 USD
View
Most Expensive
B
Rare Carat
PD-237885 · Oct 28
HK$32,010 HKD
$4,080 USD
View
21 more retailers have this diamond
Prices start from HK$4,676 HKDSave up to HK$27,334 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$4,676 HKD