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Round|Lab Grown|IGI

1.51ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG818644680

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644680

Diamond specifications and retailer prices

From HK$2,566 HKD
$327 USD
As of November 1, 2026
Save HK$19,796 HKD (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$22,361 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818644680 or 818644680. Listed at 23 retailers as of November 1, 2026, with prices from HK$2,566 to HK$22,361, a HK$19,796 spread on the same certified stone. Brilliant Earth lists it at HK$22,361. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644680
Dimensions7.34 × 7.37 × 4.48 mm
L/W Ratio1.00
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
7.34 mm7.37 mm1.51 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644680
Side View
Table 60.0%Crown 35.3°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.9%

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 1
Current: HK$22,361 HKD|Low: HK$2,464 HKD|High: HK$26,284 HKD|Avg: HK$8,282 HKD|-14.9%
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
November 2, 2026
Retailer 3HK$2,566 HKD
Retailer 5HK$3,178 HKD
Retailer 4HK$4,276 HKD
Retailer 13HK$4,394 HKD
Retailer 8HK$4,510 HKD
Retailer 7HK$5,091 HKD
Retailer 9HK$5,480 HKD
Retailer 10HK$5,620 HKD
Retailer 12HK$7,405 HKD
Retailer 2HK$7,956 HKD
Retailer 6HK$12,005 HKD
Retailer 11HK$12,735 HKD
Retailer 14HK$15,221 HKD
Brilliant EarthHK$22,361 HKD

33 data points across 14 retailers

23 retailersHK$2,566 HKD to HK$22,361 HKD

A
Cheapest Retailer
-
HK$2,566 HKD
$327 USD
A
Retailer 2
-
HK$2,872 HKD
$366 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,974 HKD
$379 USD
View
A
Retailer 4
-
HK$3,178 HKD
$405 USD
View
Retailer 5
-
HK$3,178 HKD
$405 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$3,515 HKD
View
A
Retailer 7
-
HK$4,276 HKD
$545 USD
View
A
Retailer 8
-
HK$4,394 HKD
$560 USD
View
A
Retailer 9
-
HK$4,510 HKD
£453 GBP
View
A
Retailer 10
-
HK$5,091 HKD
€618 EUR
View
A
Retailer 11
-
HK$5,480 HKD
ZAR 11,283 ZAR
View
A
Retailer 12
-
HK$5,620 HKD
£564 GBP
View
B+
Retailer 13
-
HK$6,779 HKD
$864 USD
View
B+
Retailer 14
-
HK$7,405 HKD
A$1,452 AUD
View
B+
Retailer 15
-
HK$7,956 HKD
$1,014 USD
View
B+
Retailer 16
-
HK$10,090 HKD
$1,286 USD
View
B
Retailer 17
-
HK$10,172 HKD
SGD 1,752 SGD
View
B
Retailer 18
-
HK$10,216 HKD
$1,302 USD
View
B
Retailer 19
-
HK$10,564 HKD
$1,346 USD
View
B
Retailer 20
-
HK$12,005 HKD
$1,530 USD
View
B+
Retailer 21
-
HK$12,735 HKD
£1,278 GBP
View
Retailer 22
-
HK$15,221 HKD
$1,940 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21133635A · Nov 2
HK$22,361 HKD
$2,850 USD
View
22 more retailers have this diamond
Prices start from HK$2,566 HKDSave up to HK$19,796 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
1.51ct Round
HK$2,566 HKD