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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG786646501

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786646501

Diamond specifications and retailer prices

From HK$3,311 HKD
$422 USD
As of November 1, 2026
Save HK$31,212 HKD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$34,523 HKD at Brilliant Earth · As of October 31, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG786646501 or 786646501. Listed at 24 retailers as of October 31, 2026, with prices from HK$3,311 to HK$34,523, a HK$31,212 spread on the same certified stone. Brilliant Earth lists it at HK$34,523. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786646501
Dimensions7.42 × 7.45 × 4.44 mm
L/W Ratio1.00
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
7.42 mm7.45 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786646501
Side View
Table 59.0%Crown 33.2°Girdle: MediumPavilion 40.6°Culet: NoneDepth 59.8%

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$34,523 HKD|Low: HK$3,178 HKD|High: HK$35,543 HKD|Avg: HK$10,009 HKD|-2.9%
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 16HK$3,311 HKD
Retailer 11HK$3,703 HKD
Retailer 7HK$3,711 HKD
Retailer 3HK$4,111 HKD
Retailer 13HK$5,257 HKD
Retailer 6HK$5,994 HKD
Retailer 9HK$6,434 HKD
Retailer 2HK$6,752 HKD
Retailer 12HK$7,061 HKD
Retailer 10HK$9,568 HKD
Retailer 15HK$9,910 HKD
Retailer 5HK$13,046 HKD
Retailer 8HK$13,205 HKD
Retailer 14HK$15,116 HKD
Retailer 4HK$15,378 HKD
Brilliant EarthHK$34,523 HKD

43 data points across 16 retailers

24 retailersHK$3,311 HKD to HK$34,523 HKD

A
Cheapest Retailer
-
HK$3,311 HKD
$422 USD
A
Retailer 2
-
HK$3,703 HKD
$472 USD
View
Final sale: no returns
A
Retailer 3
-
HK$3,711 HKD
$473 USD
View
Retailer 4
-
HK$4,111 HKD
$524 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$4,111 HKD
$524 USD
View
A
Retailer 6
-
HK$4,519 HKD
View
A
Retailer 7
-
HK$5,257 HKD
$670 USD
View
A
Retailer 8
-
HK$5,508 HKD
$702 USD
View
A
Retailer 9
-
HK$5,994 HKD
$764 USD
View
A
Retailer 10
-
HK$6,434 HKD
€781 EUR
View
A
Retailer 11
-
HK$6,752 HKD
£678 GBP
View
A
Retailer 12
-
HK$7,061 HKD
ZAR 14,539 ZAR
View
A
Retailer 13
-
HK$7,823 HKD
$997 USD
View
B+
Retailer 14
-
HK$9,568 HKD
A$1,876 AUD
View
B+
Retailer 15
-
HK$9,910 HKD
$1,263 USD
View
B+
Retailer 16
-
HK$13,046 HKD
SGD 2,247 SGD
View
B+
Retailer 17
-
HK$13,205 HKD
$1,683 USD
View
B+
Retailer 18
-
HK$13,315 HKD
$1,697 USD
View
B+
Retailer 19
-
HK$13,470 HKD
$1,717 USD
View
B
Retailer 20
-
HK$14,932 HKD
$1,903 USD
View
B+
Retailer 21
-
HK$15,116 HKD
£1,517 GBP
View
B+
Retailer 22
-
HK$15,378 HKD
$1,960 USD
View
B
Retailer 23
-
HK$22,819 HKD
£2,290 GBP
View
Most Expensive
B
Brilliant Earth
21370785A · Oct 31
HK$34,523 HKD
$4,400 USD
View
23 more retailers have this diamond
Prices start from HK$3,311 HKDSave up to HK$31,212 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$3,311 HKD