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1.91ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG485136604

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485136604

Diamond specifications and retailer prices

From HK$9,273 HKD
As of November 5, 2026
Save HK$25,180 HKD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$34,453 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.91ct lab-grown round diamond

This 1.91ct 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 LG485136604 or 485136604. Listed at 10 retailers as of November 5, 2026, with prices from HK$9,273 to HK$34,453, a HK$25,180 spread on the same certified stone. MOH London lists it at HK$34,453. 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

1.91
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485136604
Dimensions8.00 × 7.94 × 4.89 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
8.00 mm7.94 mm1.91 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485136604
Side View
Table 55.0%Crown 34.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.4%

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$34,453 HKD|Low: HK$8,896 HKD|High: HK$35,011 HKD|Avg: HK$16,746 HKD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4HK$9,273 HKD
Retailer 5HK$10,756 HKD
Retailer 7HK$10,756 HKD
Retailer 2HK$11,768 HKD
Retailer 3HK$12,121 HKD
Retailer 9HK$15,377 HKD
Retailer 10HK$16,655 HKD
Retailer 6HK$17,063 HKD
Retailer 8HK$21,190 HKD
MOH LondonHK$34,453 HKD

38 data points across 10 retailers

10 retailersHK$9,273 HKD to HK$34,453 HKD

A
Cheapest Retailer
-
HK$9,273 HKD
A
Retailer 2
-
HK$10,081 HKD
View
A
Retailer 3
-
HK$10,756 HKD
View
Retailer 4
-
HK$10,756 HKD
View
Price last confirmed 25 days ago
A
Retailer 5
-
HK$11,768 HKD
View
B+
Retailer 6
-
HK$12,121 HKD
View
B+
Retailer 7
-
HK$17,063 HKD
View
B
Retailer 8
-
HK$20,154 HKD
View
B
Retailer 9
-
HK$21,190 HKD
View
Most Expensive
B
MOH London
LG485136604 · Nov 5
HK$34,453 HKD
£3,458 GBP
View
9 more retailers have this diamond
Prices start from HK$9,273 HKDSave up to HK$25,180 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
1.91ct Round
HK$9,273 HKD