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1.51ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG12310704

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12310704

Diamond specifications and retailer prices

From HK$2,566 HKD
$327 USD
As of November 1, 2026
Save HK$20,265 HKD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$22,831 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 LG12310704 or 12310704. Listed at 19 retailers as of November 1, 2026, with prices from HK$2,566 to HK$22,831, a HK$20,265 spread on the same certified stone. Do Amore Diamonds lists it at HK$22,831. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12310704
Dimensions7.30 × 7.33 × 4.51 mm
L/W Ratio1.00
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.30 mm7.33 mm1.51 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12310704
Side View
Table 61.0%Crown 36°Girdle: MED-UNDPavilion 41°Culet: NoneDepth 61.6%

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$22,831 HKD|Low: HK$2,566 HKD|High: HK$22,831 HKD|Avg: HK$7,623 HKD|+0.3%
Do Amore Diamonds
Retailer 2
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Retailer 19
November 2, 2026
Retailer 19HK$2,566 HKD
Retailer 16HK$2,981 HKD
Retailer 13HK$3,138 HKD
Retailer 6HK$3,185 HKD
Retailer 14HK$3,185 HKD
Retailer 3HK$3,664 HKD
Retailer 7HK$4,394 HKD
Retailer 8HK$5,217 HKD
Retailer 10HK$5,473 HKD
Retailer 2HK$5,671 HKD
Retailer 17HK$5,790 HKD
Retailer 11HK$6,328 HKD
Retailer 18HK$9,336 HKD
Retailer 9HK$9,572 HKD
Retailer 12HK$9,964 HKD
Retailer 5HK$11,298 HKD
Retailer 4HK$12,529 HKD
Retailer 15HK$13,750 HKD
Do Amore DiamondsHK$22,831 HKD

16 data points across 19 retailers

19 retailersHK$2,566 HKD to HK$22,831 HKD

A
Cheapest Retailer
-
HK$2,566 HKD
$327 USD
A
Retailer 2
-
HK$2,981 HKD
$380 USD
View
B+
Retailer 3
-
HK$3,138 HKD
$400 USD
View
A
Retailer 4
-
HK$3,185 HKD
$406 USD
View
Retailer 5
-
HK$3,185 HKD
$406 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$3,664 HKD
$467 USD
View
A
Retailer 7
-
HK$4,394 HKD
$560 USD
View
Retailer 8
-
HK$5,217 HKD
$665 USD
View
Price last confirmed 12 days ago
A
Retailer 9
-
HK$5,473 HKD
$698 USD
View
A
Retailer 10
-
HK$5,671 HKD
£569 GBP
View
A
Retailer 11
-
HK$5,790 HKD
$738 USD
View
A
Retailer 12
-
HK$6,328 HKD
$807 USD
View
A
Retailer 13
-
HK$9,336 HKD
$1,190 USD
View
A
Retailer 14
-
HK$9,572 HKD
$1,220 USD
View
B+
Retailer 15
-
HK$9,964 HKD
$1,270 USD
View
B+
Retailer 16
-
HK$11,298 HKD
$1,440 USD
View
B+
Retailer 17
-
HK$12,529 HKD
$1,597 USD
View
B+
Retailer 18
-
HK$13,750 HKD
£1,380 GBP
View
Most Expensive
B
Do Amore Diamonds
27-03AD89E5C · Nov 2
HK$22,831 HKD
$2,910 USD
View
18 more retailers have this diamond
Prices start from HK$2,566 HKDSave up to HK$20,265 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$2,566 HKD