CaratHunter
Plans
Round|Lab Grown|IGI

1.51ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG451055677

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055677

Diamond specifications and retailer prices

From HK$7,374 HKD
As of November 5, 2026
Save HK$21,559 HKD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$28,934 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct 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 LG451055677 or 451055677. Listed at 10 retailers as of November 5, 2026, with prices from HK$7,374 to HK$28,934, a HK$21,559 spread on the same certified stone. MOH London lists it at HK$28,934. 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

1.51
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055677
Dimensions7.26 × 7.31 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.26 mm7.31 mm1.51 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055677
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.7%

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$28,934 HKD|Low: HK$7,076 HKD|High: HK$29,402 HKD|Avg: HK$13,941 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5HK$7,374 HKD
Retailer 6HK$8,551 HKD
Retailer 8HK$8,551 HKD
Retailer 2HK$9,359 HKD
Retailer 3HK$9,924 HKD
Retailer 9HK$12,592 HKD
Retailer 7HK$13,698 HKD
Retailer 4HK$18,436 HKD
MOH LondonHK$28,934 HKD

28 data points across 9 retailers

10 retailersHK$7,374 HKD to HK$28,934 HKD

A
Cheapest Retailer
-
HK$7,374 HKD
A
Retailer 2
-
HK$8,026 HKD
View
Retailer 3
-
HK$8,551 HKD
View
Price last confirmed 25 days ago
A
Retailer 4
-
HK$8,551 HKD
View
A
Retailer 5
-
HK$9,359 HKD
View
B+
Retailer 6
-
HK$9,924 HKD
View
B
Retailer 7
-
HK$13,698 HKD
View
B
Retailer 8
-
HK$18,436 HKD
View
B
Retailer 9
-
HK$24,053 HKD
View
Most Expensive
B
MOH London
LG451055677 · Nov 5
HK$28,934 HKD
£2,904 GBP
View
9 more retailers have this diamond
Prices start from HK$7,374 HKDSave up to HK$21,559 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
1.51ct Round
HK$7,374 HKD