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Cushion|Lab Grown|IGI

1.53ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818681100

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818681100

Diamond specifications and retailer prices

From HK$5,728 HKD
$730 USD
As of November 3, 2026
Save HK$22,989 HKD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$28,717 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.53ct lab-grown cushion diamond

This 1.53ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681100 or 818681100. Listed at 16 retailers as of November 2, 2026, with prices from HK$5,728 to HK$28,717, a HK$22,989 spread on the same certified stone. Brilliant Earth lists it at HK$28,717. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681100
Dimensions8.60 × 5.78 × 3.81 mm
L/W Ratio1.49
Girdle conditionFaceted
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
8.60 mm5.78 mm1.53 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681100
Side View
Table 61.0%Crown 32.7°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 65.9%

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: Nov 3
Current: HK$28,717 HKD|Low: HK$5,437 HKD|High: HK$38,367 HKD|Avg: HK$13,974 HKD|-25.2%
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
November 3, 2026
Retailer 8HK$5,437 HKD
Retailer 14HK$5,728 HKD
Retailer 4HK$6,708 HKD
Retailer 11HK$7,423 HKD
Retailer 5HK$7,721 HKD
Retailer 2HK$8,278 HKD
Retailer 12HK$8,569 HKD
Retailer 15HK$8,670 HKD
Retailer 10HK$11,746 HKD
Retailer 3HK$14,469 HKD
Retailer 6HK$16,153 HKD
Retailer 16HK$16,168 HKD
Retailer 9HK$17,858 HKD
Retailer 13HK$20,736 HKD
Retailer 7HK$21,302 HKD
Brilliant EarthHK$28,717 HKD

30 data points across 16 retailers

16 retailersHK$5,728 HKD to HK$28,717 HKD

Retailer 1
-
HK$5,437 HKD
$693 USD
Price last confirmed 17 days ago
A
Retailer 2
-
HK$5,728 HKD
$730 USD
View
A
Retailer 3
-
HK$6,708 HKD
$855 USD
View
A
Retailer 4
-
HK$7,423 HKD
€901 EUR
View
A
Retailer 5
-
HK$7,721 HKD
$984 USD
View
A
Retailer 6
-
HK$8,278 HKD
£831 GBP
View
A
Retailer 7
-
HK$8,569 HKD
ZAR 17,644 ZAR
View
A
Retailer 8
-
HK$8,670 HKD
$1,105 USD
View
A
Retailer 9
-
HK$11,746 HKD
$1,497 USD
View
B+
Retailer 10
-
HK$14,469 HKD
£1,452 GBP
View
B+
Retailer 11
-
HK$16,153 HKD
SGD 2,782 SGD
View
B+
Retailer 12
-
HK$16,168 HKD
$2,061 USD
View
B+
Retailer 13
-
HK$17,858 HKD
$2,276 USD
View
B+
Retailer 14
-
HK$20,736 HKD
£2,081 GBP
View
Retailer 15
-
HK$21,302 HKD
$2,715 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21418369A · Nov 2
HK$28,717 HKD
$3,660 USD
View
15 more retailers have this diamond
Prices start from HK$5,728 HKDSave up to HK$22,989 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
1.53ct Cushion
HK$5,728 HKD