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1.51ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG494167199

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494167199

Diamond specifications and retailer prices

From HK$3,138 HKD
$400 USD
As of November 1, 2026
Save HK$19,694 HKD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$22,832 HKD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494167199 or 494167199. Listed at 12 retailers as of November 1, 2026, with prices from HK$3,138 to HK$22,832, a HK$19,694 spread on the same certified stone. Do Amore Diamonds lists it at HK$22,832. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494167199
Dimensions7.35 × 7.38 × 4.55 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.35 mm7.38 mm1.51 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494167199
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.8%

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: Nov 1
Current: HK$22,832 HKD|Low: HK$3,138 HKD|High: HK$22,832 HKD|Avg: HK$8,450 HKD|+0.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7HK$3,138 HKD
Retailer 9HK$3,664 HKD
Retailer 11HK$4,394 HKD
Retailer 3HK$5,474 HKD
Retailer 2HK$5,671 HKD
Retailer 5HK$6,198 HKD
Retailer 4HK$6,328 HKD
Retailer 8HK$9,337 HKD
Retailer 12HK$9,572 HKD
Retailer 10HK$12,529 HKD
Retailer 6HK$13,731 HKD
Do Amore DiamondsHK$22,832 HKD

16 data points across 12 retailers

12 retailersHK$3,138 HKD to HK$22,832 HKD

B+
Cheapest Retailer
-
HK$3,138 HKD
$400 USD
A
Retailer 2
-
HK$3,664 HKD
$467 USD
View
A
Retailer 3
-
HK$4,394 HKD
$560 USD
View
A
Retailer 4
-
HK$5,474 HKD
$698 USD
View
A
Retailer 5
-
HK$5,671 HKD
£569 GBP
View
A
Retailer 6
-
HK$6,198 HKD
$790 USD
View
A
Retailer 7
-
HK$6,328 HKD
$807 USD
View
A
Retailer 8
-
HK$9,337 HKD
$1,190 USD
View
A
Retailer 9
-
HK$9,572 HKD
$1,220 USD
View
B+
Retailer 10
-
HK$12,529 HKD
$1,597 USD
View
B+
Retailer 11
-
HK$13,731 HKD
£1,378 GBP
View
Most Expensive
B
Do Amore Diamonds
27-4CC7EC046 · Nov 2
HK$22,832 HKD
$2,910 USD
View
11 more retailers have this diamond
Prices start from HK$3,138 HKDSave up to HK$19,694 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$3,138 HKD