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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG770636656

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770636656

Diamond specifications and retailer prices

From HK$3,044 HKD
$388 USD
As of November 1, 2026
Save HK$26,928 HKD (90%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: HK$29,972 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 LG770636656 or 770636656. Listed at 27 retailers as of October 31, 2026, with prices from HK$3,044 to HK$29,972, a HK$26,928 spread on the same certified stone. Brilliant Earth lists it at HK$29,972. 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 angle35.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770636656
Dimensions7.29 × 7.36 × 4.52 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
7.29 mm7.36 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770636656
Side View
Table 58.0%Crown 35.8°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.7%

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$29,972 HKD|Low: HK$2,934 HKD|High: HK$29,972 HKD|Avg: HK$7,736 HKD
Brilliant Earth
Retailer 2
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Retailer 20
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Retailer 24
November 2, 2026
Retailer 8HK$3,044 HKD
Retailer 20HK$3,405 HKD
Retailer 4HK$3,413 HKD
Retailer 3HK$3,774 HKD
Retailer 6HK$3,774 HKD
Retailer 10HK$4,118 HKD
Retailer 18HK$4,834 HKD
Retailer 14HK$5,084 HKD
Retailer 21HK$5,100 HKD
Retailer 12HK$5,688 HKD
Retailer 23HK$5,957 HKD
Retailer 19HK$5,965 HKD
Retailer 24HK$6,490 HKD
Retailer 2HK$6,825 HKD
Retailer 9HK$7,728 HKD
Retailer 22HK$8,762 HKD
Retailer 5HK$8,913 HKD
Retailer 16HK$12,048 HKD
Retailer 7HK$12,138 HKD
Retailer 11HK$12,432 HKD
Retailer 15HK$14,076 HKD
Retailer 17HK$14,131 HKD
Retailer 13HK$14,757 HKD
Brilliant EarthHK$29,972 HKD

26 data points across 24 retailers

27 retailersHK$3,044 HKD to HK$29,972 HKD

A
Cheapest Retailer
-
HK$3,044 HKD
$388 USD
A
Retailer 2
-
HK$3,405 HKD
$434 USD
View
Final sale: no returns
A
Retailer 3
-
HK$3,413 HKD
$435 USD
View
Retailer 4
-
HK$3,774 HKD
$481 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$3,774 HKD
$481 USD
View
A
Retailer 6
-
HK$4,118 HKD
View
A
Retailer 7
-
HK$4,834 HKD
£485 GBP
View
A
Retailer 8
-
HK$5,084 HKD
$648 USD
View
A
Retailer 9
-
HK$5,100 HKD
$650 USD
View
A
Retailer 10
-
HK$5,688 HKD
$725 USD
View
A
Retailer 11
-
HK$5,957 HKD
A$1,168 AUD
View
A
Retailer 12
-
HK$5,965 HKD
€724 EUR
View
A
Retailer 13
-
HK$6,490 HKD
ZAR 13,362 ZAR
View
A
Retailer 14
-
HK$6,825 HKD
£685 GBP
View
B+
Retailer 15
-
HK$7,728 HKD
$985 USD
View
B+
Retailer 16
-
HK$8,762 HKD
A$1,718 AUD
View
B+
Retailer 17
-
HK$8,913 HKD
$1,136 USD
View
B+
Retailer 18
-
HK$9,047 HKD
$1,153 USD
View
B+
Retailer 19
-
HK$12,048 HKD
SGD 2,075 SGD
View
B+
Retailer 20
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HK$12,138 HKD
$1,547 USD
View
B+
Retailer 21
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HK$12,432 HKD
$1,585 USD
View
B
Retailer 22
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HK$13,213 HKD
$1,684 USD
View
Retailer 23
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HK$13,576 HKD
A$2,662 AUD
View
Price last confirmed 33 days ago
B
Retailer 24
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HK$14,076 HKD
$1,794 USD
View
B
Retailer 25
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HK$14,131 HKD
$1,801 USD
View
B
Retailer 26
-
HK$14,757 HKD
£1,481 GBP
View
Most Expensive
B
Brilliant Earth
20708800A · Oct 31
HK$29,972 HKD
$3,820 USD
View
26 more retailers have this diamond
Prices start from HK$3,044 HKDSave up to HK$26,928 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$3,044 HKD