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Round|Lab Grown|IGI

1.91ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG640491565

Shape and cutting style on the report: Round brilliant

Certificate IGI LG640491565

Diamond specifications and retailer prices

From HK$4,810 HKD
$613 USD
As of October 29, 2026
Save HK$36,619 HKD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$41,429 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG640491565 or 640491565. Listed at 24 retailers as of October 29, 2026, with prices from HK$4,810 to HK$41,429, a HK$36,619 spread on the same certified stone. Brilliant Earth lists it at HK$41,429. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640491565
Dimensions7.88 × 7.93 × 4.92 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
7.88 mm7.93 mm1.91 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640491565
Side View
Table 58.0%Crown 35.8°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

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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$41,429 HKD|Low: HK$4,622 HKD|High: HK$41,429 HKD|Avg: HK$13,758 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 5HK$4,810 HKD
Retailer 9HK$5,383 HKD
Retailer 8HK$5,963 HKD
Retailer 18HK$6,983 HKD
Retailer 6HK$8,003 HKD
Retailer 15HK$8,405 HKD
Retailer 11HK$9,018 HKD
Retailer 12HK$9,087 HKD
Retailer 2HK$9,285 HKD
Retailer 13HK$10,255 HKD
Retailer 16HK$13,980 HKD
Retailer 3HK$14,806 HKD
Retailer 7HK$15,989 HKD
Retailer 4HK$18,125 HKD
Retailer 10HK$19,713 HKD
Retailer 17HK$21,225 HKD
Retailer 14HK$25,939 HKD
Brilliant EarthHK$41,429 HKD

30 data points across 18 retailers

24 retailersHK$4,810 HKD to HK$41,429 HKD

A
Cheapest Retailer
-
HK$4,810 HKD
$613 USD
A
Retailer 2
-
HK$5,383 HKD
$686 USD
View
Final sale: no returns
A
Retailer 3
-
HK$5,390 HKD
$687 USD
View
A
Retailer 4
-
HK$5,963 HKD
$760 USD
View
A
Retailer 5
-
HK$5,963 HKD
$760 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
HK$6,983 HKD
$890 USD
View
A
Retailer 7
-
HK$7,729 HKD
$985 USD
View
A
Retailer 8
-
HK$8,003 HKD
$1,020 USD
View
A
Retailer 9
-
HK$8,405 HKD
A$1,648 AUD
View
A
Retailer 10
-
HK$9,018 HKD
£905 GBP
View
A
Retailer 11
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HK$9,087 HKD
€1,103 EUR
View
A
Retailer 12
-
HK$9,285 HKD
£932 GBP
View
A
Retailer 13
-
HK$10,255 HKD
ZAR 21,114 ZAR
View
B+
Retailer 14
-
HK$11,244 HKD
$1,433 USD
View
B+
Retailer 15
-
HK$13,980 HKD
A$2,741 AUD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
HK$14,806 HKD
$1,887 USD
View
B+
Retailer 17
-
HK$15,693 HKD
$2,000 USD
View
B+
Retailer 18
-
HK$15,989 HKD
A$3,135 AUD
View
Price last confirmed 21 days ago
B+
Retailer 19
-
HK$18,125 HKD
$2,310 USD
View
B
Retailer 20
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HK$19,283 HKD
$2,458 USD
View
B
Retailer 21
-
HK$19,713 HKD
$2,512 USD
View
B+
Retailer 22
-
HK$21,225 HKD
$2,705 USD
View
B
Retailer 23
-
HK$25,939 HKD
£2,603 GBP
View
Most Expensive
B
Brilliant Earth
11460987A · Oct 29
HK$41,429 HKD
$5,280 USD
View
23 more retailers have this diamond
Prices start from HK$4,810 HKDSave up to HK$36,619 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$4,810 HKD