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1.74ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG591310801

Shape and cutting style on the report: Round brilliant

Certificate IGI LG591310801

Diamond specifications and retailer prices

From HK$2,464 HKD
$314 USD
As of October 28, 2026
Save HK$8,678 HKD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$11,142 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.74ct lab-grown round diamond

This 1.74ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG591310801 or 591310801. Listed at 11 retailers as of October 28, 2026, with prices from HK$2,464 to HK$11,142, a HK$8,678 spread on the same certified stone. Brilliant Earth lists it at HK$11,142. 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

1.74
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591310801
Dimensions7.68 × 7.72 × 4.81 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.68 mm7.72 mm1.74 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591310801
Side View
Table 55.0%Crown 36.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.5%

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 28
Current: HK$11,142 HKD|Low: HK$2,464 HKD|High: HK$14,202 HKD|Avg: HK$5,863 HKD|+2.9%
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 29, 2026
Retailer 4HK$2,464 HKD
Retailer 9HK$3,214 HKD
Retailer 8HK$3,397 HKD
Retailer 3HK$3,492 HKD
Retailer 6HK$3,872 HKD
Retailer 10HK$4,064 HKD
Retailer 2HK$4,590 HKD
Retailer 7HK$5,396 HKD
Retailer 12HK$7,776 HKD
Retailer 11HK$9,400 HKD
Retailer 5HK$9,746 HKD
Brilliant EarthHK$11,142 HKD

39 data points across 12 retailers

11 retailersHK$2,464 HKD to HK$11,142 HKD

A
Cheapest Retailer
-
HK$2,464 HKD
$314 USD
Final sale: no returns
A
Retailer 2
-
HK$3,214 HKD
View
A
Retailer 3
-
HK$3,397 HKD
$433 USD
View
A
Retailer 4
-
HK$3,872 HKD
€470 EUR
View
A
Retailer 5
-
HK$4,064 HKD
$518 USD
View
A
Retailer 6
-
HK$4,590 HKD
£461 GBP
View
B+
Retailer 7
-
HK$5,396 HKD
A$1,058 AUD
View
B
Retailer 8
-
HK$7,776 HKD
$991 USD
View
B
Retailer 9
-
HK$9,400 HKD
SGD 1,619 SGD
View
B
Retailer 10
-
HK$9,746 HKD
£978 GBP
View
Most Expensive
B
Brilliant Earth
7790795A · Oct 29
HK$11,142 HKD
$1,420 USD
View
10 more retailers have this diamond
Prices start from HK$2,464 HKDSave up to HK$8,678 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
1.74ct Round
HK$2,464 HKD