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Round|Lab Grown|IGI

1.70ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG451057448

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057448

Diamond specifications and retailer prices

From HK$7,453 HKD
$950 USD
As of October 30, 2026
Save HK$28,806 HKD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$36,259 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057448 or 451057448. Listed at 10 retailers as of October 29, 2026, with prices from HK$7,453 to HK$36,259, a HK$28,806 spread on the same certified stone. MOH London lists it at HK$36,259. 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

1.70
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057448
Dimensions7.73 × 7.78 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.73 mm7.78 mm1.70 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057448
Side View
Table 60.0%Crown 31.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.8%

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$36,259 HKD|Low: HK$7,453 HKD|High: HK$36,498 HKD|Avg: HK$18,460 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2HK$7,453 HKD
Retailer 3HK$10,890 HKD
Retailer 6HK$12,192 HKD
Retailer 4HK$12,632 HKD
Retailer 7HK$12,632 HKD
Retailer 9HK$17,315 HKD
Retailer 5HK$19,944 HKD
Retailer 8HK$22,917 HKD
Retailer 10HK$28,273 HKD
MOH LondonHK$36,259 HKD

13 data points across 10 retailers

10 retailersHK$7,453 HKD to HK$36,259 HKD

A
Cheapest Retailer
-
HK$7,453 HKD
$950 USD
B+
Retailer 2
-
HK$10,890 HKD
$1,388 USD
View
B+
Retailer 3
-
HK$11,847 HKD
$1,510 USD
View
B+
Retailer 4
-
HK$12,192 HKD
$1,554 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$12,632 HKD
$1,610 USD
View
Retailer 6
-
HK$12,632 HKD
$1,610 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
HK$19,944 HKD
$2,542 USD
View
B
Retailer 8
-
HK$22,917 HKD
$2,921 USD
View
B
Retailer 9
-
HK$23,670 HKD
$3,017 USD
View
Most Expensive
B
MOH London
LG451057448 · Oct 29
HK$36,259 HKD
£3,639 GBP
View
9 more retailers have this diamond
Prices start from HK$7,453 HKDSave up to HK$28,806 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
1.70ct Round
HK$7,453 HKD