CaratHunter
Plans
Round|Lab Grown|IGI

1.57ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG451056289

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451056289

Diamond specifications and retailer prices

From HK$7,657 HKD
As of November 5, 2026
Save HK$22,472 HKD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$30,129 HKD at MOH London · As of November 3, 2026
View at MOH London

About this 1.57ct lab-grown round diamond

This 1.57ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056289 or 451056289. Listed at 9 retailers as of November 3, 2026, with prices from HK$7,657 to HK$30,129, a HK$22,472 spread on the same certified stone. MOH London lists it at HK$30,129. 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

1.57
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056289
Dimensions7.43 × 7.46 × 4.65 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
7.43 mm7.46 mm1.57 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056289
Side View
Table 56.0%Crown 33.5°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.4%

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: Nov 5
Current: HK$30,129 HKD|Low: HK$7,657 HKD|High: HK$30,528 HKD|Avg: HK$16,205 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 4HK$7,657 HKD
Retailer 5HK$8,881 HKD
Retailer 2HK$10,238 HKD
Retailer 7HK$13,007 HKD
Retailer 6HK$14,208 HKD
Retailer 3HK$19,142 HKD
MOH LondonHK$30,129 HKD

17 data points across 7 retailers

9 retailersHK$7,657 HKD to HK$30,129 HKD

A
Cheapest Retailer
-
HK$7,657 HKD
A
Retailer 2
-
HK$8,332 HKD
View
Retailer 3
-
HK$8,881 HKD
View
Price last confirmed 25 days ago
A
Retailer 4
-
HK$8,881 HKD
View
B+
Retailer 5
-
HK$10,238 HKD
View
B
Retailer 6
-
HK$14,208 HKD
View
B
Retailer 7
-
HK$16,655 HKD
View
B
Retailer 8
-
HK$19,142 HKD
View
Most Expensive
B
MOH London
LG451056289 · Nov 3
HK$30,129 HKD
£3,024 GBP
View
8 more retailers have this diamond
Prices start from HK$7,657 HKDSave up to HK$22,472 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
1.57ct Round
HK$7,657 HKD