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Round|Lab Grown|IGI

1.72ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG455032750

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455032750

Diamond specifications and retailer prices

From HK$2,063 HKD
$263 USD
As of October 30, 2026
Save HK$7,195 HKD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$9,258 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.72ct lab-grown round diamond

This 1.72ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455032750 or 455032750. Listed at 15 retailers as of October 29, 2026, with prices from HK$2,063 to HK$9,258, a HK$7,195 spread on the same certified stone. Brilliant Earth lists it at HK$9,258. 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

1.72
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455032750
Dimensions7.66 × 7.62 × 4.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT).
Top View
7.66 mm7.62 mm1.72 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455032750
Side View
Table 59.5%Crown 35.6°GirdlePavilion 41.3°Culet: NoneDepth 62.4%

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 30
Current: HK$9,258 HKD|Low: HK$2,063 HKD|High: HK$10,323 HKD|Avg: HK$4,851 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 11HK$2,063 HKD
Retailer 4HK$2,550 HKD
Retailer 12HK$3,099 HKD
Retailer 7HK$3,593 HKD
Retailer 3HK$3,844 HKD
Retailer 5HK$4,144 HKD
Retailer 2HK$4,324 HKD
Retailer 9HK$4,370 HKD
Retailer 8HK$6,033 HKD
Retailer 10HK$7,782 HKD
Retailer 6HK$9,207 HKD
Brilliant EarthHK$9,258 HKD

43 data points across 12 retailers

15 retailersHK$2,063 HKD to HK$9,258 HKD

Retailer 1
-
HK$2,056 HKD
$262 USD
Price last confirmed 39 days ago
A
Retailer 2
-
HK$2,063 HKD
$263 USD
View
Final sale: no returns
Retailer 3
-
HK$2,385 HKD
$304 USD
View
Price last confirmed 39 days ago
Retailer 4
-
HK$2,511 HKD
$320 USD
View
Price last confirmed 36 days ago
B+
Retailer 5
-
HK$3,099 HKD
$395 USD
View
Retailer 6
-
HK$3,593 HKD
£361 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
HK$4,144 HKD
€503 EUR
View
A
Retailer 8
-
HK$4,324 HKD
£434 GBP
View
A
Retailer 9
-
HK$4,370 HKD
$557 USD
View
B+
Retailer 10
-
HK$6,033 HKD
$769 USD
View
Retailer 11
-
HK$7,140 HKD
$910 USD
View
Price last confirmed 39 days ago
B
Retailer 12
-
HK$7,782 HKD
$992 USD
View
Retailer 13
-
HK$8,183 HKD
$1,043 USD
View
Price last confirmed 40 days ago
B
Retailer 14
-
HK$9,207 HKD
£924 GBP
View
Most Expensive
B
Brilliant Earth
14242415A · Oct 29
HK$9,258 HKD
$1,180 USD
View
14 more retailers have this diamond
Prices start from HK$2,063 HKDSave up to HK$7,195 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
1.72ct Round
HK$2,063 HKD