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Round|Lab Grown|IGI

1.29ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG720540510

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720540510

Diamond specifications and retailer prices

From HK$1,718 HKD
$219 USD
As of October 29, 2026
Save HK$16,217 HKD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$17,935 HKD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720540510 or 720540510. Listed at 23 retailers as of October 27, 2026, with prices from HK$1,718 to HK$17,935, a HK$16,217 spread on the same certified stone. Queensmith lists it at HK$17,935. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720540510
Dimensions6.90 × 6.94 × 4.32 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.90 mm6.94 mm1.29 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720540510
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 41°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: Oct 29
Current: HK$3,946 HKD|Low: HK$1,922 HKD|High: HK$19,614 HKD|Avg: HK$5,448 HKD|-13.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 4HK$1,922 HKD
Retailer 9HK$1,993 HKD
Retailer 18HK$2,410 HKD
Retailer 5HK$2,864 HKD
Retailer 13HK$3,658 HKD
Retailer 11HK$3,805 HKD
Retailer 12HK$3,880 HKD
Retailer 1HK$3,946 HKD
Retailer 3HK$4,048 HKD
Retailer 14HK$5,202 HKD
Retailer 17HK$5,539 HKD
Retailer 2HK$5,657 HKD
Retailer 10HK$6,886 HKD
Retailer 19HK$7,259 HKD
Retailer 7HK$7,320 HKD
Retailer 15HK$8,539 HKD
Retailer 16HK$9,493 HKD
Retailer 6HK$9,837 HKD
Retailer 8HK$13,181 HKD

40 data points across 19 retailers

23 retailersHK$1,718 HKD to HK$17,935 HKD

A
Cheapest Retailer
-
HK$1,718 HKD
$219 USD
A
Retailer 2
-
HK$1,922 HKD
$245 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,993 HKD
$254 USD
View
A
Retailer 4
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HK$2,126 HKD
$271 USD
View
A
Retailer 5
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HK$2,126 HKD
$271 USD
View
A
Retailer 6
-
HK$2,410 HKD
View
B+
Retailer 7
-
HK$2,864 HKD
$365 USD
View
A
Retailer 8
-
HK$3,658 HKD
ZAR 7,532 ZAR
View
A
Retailer 9
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HK$3,880 HKD
€471 EUR
View
A
Retailer 10
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HK$3,946 HKD
£396 GBP
View
A
Retailer 11
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HK$4,048 HKD
$516 USD
View
A
Retailer 12
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HK$5,202 HKD
A$1,020 AUD
View
A
Retailer 13
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HK$5,539 HKD
$706 USD
View
A
Retailer 14
-
HK$5,657 HKD
$721 USD
View
A
Retailer 15
-
HK$6,841 HKD
$872 USD
View
B+
Retailer 16
-
HK$6,886 HKD
SGD 1,186 SGD
View
B+
Retailer 17
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HK$7,259 HKD
$925 USD
View
B+
Retailer 18
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HK$7,320 HKD
$933 USD
View
B+
Retailer 19
-
HK$8,539 HKD
£857 GBP
View
Retailer 20
-
HK$9,493 HKD
$1,210 USD
View
Price last confirmed 12 days ago
B+
Retailer 21
-
HK$9,837 HKD
$1,254 USD
View
B+
Retailer 22
-
HK$13,181 HKD
$1,680 USD
View
Most Expensive
B
Queensmith
LG720540510 · Oct 27
HK$17,935 HKD
£1,800 GBP
View
22 more retailers have this diamond
Prices start from HK$1,718 HKDSave up to HK$16,217 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
1.29ct Round
HK$1,718 HKD