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Cushion|Lab Grown|IGI

1.91ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG754576187

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG754576187

Diamond specifications and retailer prices

From HK$3,617 HKD
$461 USD
As of October 30, 2026
Save HK$26,668 HKD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$35,698 HKD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 1.91ct lab-grown cushion diamond

This 1.91ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754576187 or 754576187. Listed at 24 retailers as of October 30, 2026, with a 737% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754576187
Dimensions8.15 × 6.92 × 4.56 mm
L/W Ratio1.18
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
8.15 mm6.92 mm1.91 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754576187
Side View
Table 59.0%Crown 33.7°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 65.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$30,284 HKD|Low: HK$3,617 HKD|High: HK$45,034 HKD|Avg: HK$14,279 HKD|-30.7%
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
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 5HK$3,617 HKD
Retailer 6HK$4,009 HKD
Retailer 17HK$4,693 HKD
Retailer 4HK$5,423 HKD
Retailer 15HK$5,767 HKD
Retailer 19HK$6,025 HKD
Retailer 16HK$6,339 HKD
Retailer 13HK$7,326 HKD
Retailer 18HK$7,605 HKD
Retailer 2HK$8,007 HKD
Retailer 3HK$9,729 HKD
Retailer 9HK$10,383 HKD
Retailer 11HK$12,913 HKD
Retailer 12HK$14,472 HKD
Retailer 7HK$14,600 HKD
Retailer 21HK$15,001 HKD
Retailer 8HK$15,647 HKD
Retailer 10HK$16,341 HKD
Retailer 14HK$25,499 HKD
Retailer 20HK$28,715 HKD
Brilliant EarthHK$30,284 HKD

30 data points across 21 retailers

24 retailersHK$3,617 HKD to HK$30,284 HKD

A
Cheapest Retailer
-
HK$3,617 HKD
$461 USD
Final sale: no returns
A
Retailer 2
-
HK$4,009 HKD
$511 USD
View
A
Retailer 3
-
HK$4,693 HKD
£471 GBP
View
A
Retailer 4
-
HK$5,423 HKD
View
A
Retailer 5
-
HK$5,767 HKD
$735 USD
View
A
Retailer 6
-
HK$6,025 HKD
$768 USD
View
A
Retailer 7
-
HK$6,339 HKD
$808 USD
View
A
Retailer 8
-
HK$7,326 HKD
£735 GBP
View
A
Retailer 9
-
HK$7,605 HKD
ZAR 15,659 ZAR
View
A
Retailer 10
-
HK$8,007 HKD
€972 EUR
View
A
Retailer 11
-
HK$9,729 HKD
$1,240 USD
View
Retailer 12
-
HK$10,383 HKD
A$2,036 AUD
View
Price last confirmed 11 days ago
Retailer 13
-
HK$12,913 HKD
£1,296 GBP
View
Price last confirmed 10 days ago
B+
Retailer 14
-
HK$14,472 HKD
$1,845 USD
View
A
Retailer 15
-
HK$14,600 HKD
$1,861 USD
View
A
Retailer 16
-
HK$14,860 HKD
$1,894 USD
View
B+
Retailer 17
-
HK$15,001 HKD
$1,912 USD
View
B+
Retailer 18
-
HK$15,647 HKD
SGD 2,695 SGD
View
Retailer 19
-
HK$16,341 HKD
£1,640 GBP
View
Price last confirmed 10 days ago
Retailer 20
-
HK$25,499 HKD
$3,250 USD
View
Price last confirmed 26 days ago
B
Retailer 21
-
HK$27,899 HKD
£2,800 GBP
View
B
Retailer 22
-
HK$28,715 HKD
$3,660 USD
View
B
Retailer 23
-
HK$30,284 HKD
$3,860 USD
View
Most Expensive
Brilliant Earth
16791955A · Oct 24
HK$35,698 HKD
$4,550 USD
View
Price last confirmed 7 days ago
23 more retailers have this diamond
Prices start from HK$3,617 HKDSave up to HK$26,668 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 Cushion
HK$3,617 HKD