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Round|Lab Grown|IGI

1.91ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG607370993

Shape and cutting style on the report: Round brilliant

Certificate IGI LG607370993

Diamond specifications and retailer prices

From HK$3,609 HKD
$460 USD
As of October 29, 2026
Save HK$33,896 HKD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$37,506 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 LG607370993 or 607370993. Listed at 25 retailers as of October 29, 2026, with prices from HK$3,609 to HK$37,506, a HK$33,896 spread on the same certified stone. Brilliant Earth lists it at HK$37,506. 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 angle35.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607370993
Dimensions7.95 × 7.90 × 4.90 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
7.95 mm7.90 mm1.91 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607370993
Side View
Table 58.0%Crown 35.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.9%

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$37,506 HKD|Low: HK$3,609 HKD|High: HK$41,429 HKD|Avg: HK$13,563 HKD|-9.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
October 29, 2026
Retailer 4HK$3,609 HKD
Retailer 13HK$4,041 HKD
Retailer 14HK$4,049 HKD
Retailer 21HK$4,480 HKD
Retailer 7HK$4,921 HKD
Retailer 20HK$5,610 HKD
Retailer 23HK$6,002 HKD
Retailer 3HK$6,458 HKD
Retailer 17HK$6,855 HKD
Retailer 2HK$7,377 HKD
Retailer 19HK$7,699 HKD
Retailer 18HK$9,476 HKD
Retailer 5HK$10,428 HKD
Retailer 6HK$10,828 HKD
Retailer 9HK$14,237 HKD
Retailer 12HK$14,406 HKD
Retailer 11HK$14,644 HKD
Retailer 15HK$15,321 HKD
Retailer 8HK$15,887 HKD
Retailer 16HK$16,270 HKD
Retailer 22HK$16,482 HKD
Retailer 10HK$16,768 HKD
Brilliant EarthHK$37,506 HKD

30 data points across 23 retailers

25 retailersHK$3,609 HKD to HK$37,506 HKD

A
Cheapest Retailer
-
HK$3,609 HKD
$460 USD
A
Retailer 2
-
HK$4,041 HKD
$515 USD
View
Final sale: no returns
A
Retailer 3
-
HK$4,049 HKD
$516 USD
View
A
Retailer 4
-
HK$4,480 HKD
$571 USD
View
A
Retailer 5
-
HK$4,921 HKD
View
A
Retailer 6
-
HK$5,610 HKD
$715 USD
View
A
Retailer 7
-
HK$6,002 HKD
$765 USD
View
A
Retailer 8
-
HK$6,159 HKD
$785 USD
View
Price last confirmed 13 days ago
A
Retailer 9
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HK$6,458 HKD
$823 USD
View
A
Retailer 10
-
HK$6,855 HKD
€832 EUR
View
A
Retailer 11
-
HK$7,377 HKD
£740 GBP
View
A
Retailer 12
-
HK$7,699 HKD
ZAR 15,852 ZAR
View
A
Retailer 13
-
HK$9,476 HKD
A$1,858 AUD
View
A
Retailer 14
-
HK$10,428 HKD
$1,329 USD
View
B+
Retailer 15
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HK$10,828 HKD
$1,380 USD
View
B+
Retailer 16
-
HK$14,237 HKD
SGD 2,452 SGD
View
B+
Retailer 17
-
HK$14,406 HKD
$1,836 USD
View
B+
Retailer 18
-
HK$14,644 HKD
$1,866 USD
View
B+
Retailer 19
-
HK$15,321 HKD
A$3,004 AUD
View
Price last confirmed 8 days ago
B+
Retailer 20
-
HK$15,724 HKD
$2,004 USD
View
B+
Retailer 21
-
HK$15,887 HKD
$2,025 USD
View
B+
Retailer 22
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HK$16,270 HKD
A$3,190 AUD
View
Price last confirmed 21 days ago
B+
Retailer 23
-
HK$16,482 HKD
£1,654 GBP
View
B+
Retailer 24
-
HK$16,768 HKD
$2,137 USD
View
Most Expensive
B
Brilliant Earth
14484113A · Oct 29
HK$37,506 HKD
$4,780 USD
View
24 more retailers have this diamond
Prices start from HK$3,609 HKDSave up to HK$33,896 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$3,609 HKD