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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG700512156

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG700512156

Diamond specifications and retailer prices

From HK$2,605 HKD
$332 USD
As of October 30, 2026
Save HK$17,598 HKD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$20,203 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant 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 LG700512156 or 700512156. Listed at 24 retailers as of October 28, 2026, with prices from HK$2,605 to HK$20,203, a HK$17,598 spread on the same certified stone. Rare Carat lists it at HK$20,203. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700512156
Dimensions8.59 × 5.74 × 3.70 mm
L/W Ratio1.50
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
8.59 mm5.74 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700512156
Side View
Table 63.0%Crown 39.2°Girdle: MediumPavilion 33°Culet: NoneDepth 64.5%

Caratlytics Score

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A+
Exceptional
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$20,203 HKD|Low: HK$2,503 HKD|High: HK$20,281 HKD|Avg: HK$8,110 HKD|-0.4%
Rare Carat
Retailer 2
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Retailer 22
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Retailer 24
November 1, 2026
Retailer 3HK$2,605 HKD
Retailer 23HK$3,021 HKD
Retailer 22HK$3,107 HKD
Retailer 24HK$3,232 HKD
Retailer 14HK$3,716 HKD
Retailer 19HK$4,080 HKD
Retailer 7HK$4,551 HKD
Retailer 18HK$5,248 HKD
Retailer 11HK$5,264 HKD
Retailer 21HK$5,551 HKD
Retailer 13HK$5,785 HKD
Retailer 12HK$7,317 HKD
Retailer 20HK$7,532 HKD
Retailer 8HK$8,568 HKD
Retailer 5HK$9,478 HKD
Retailer 4HK$10,388 HKD
Retailer 15HK$10,730 HKD
Retailer 17HK$10,804 HKD
Retailer 16HK$10,810 HKD
Retailer 10HK$12,208 HKD
Retailer 9HK$12,672 HKD
Retailer 2HK$12,943 HKD
Retailer 6HK$13,407 HKD
Rare CaratHK$20,203 HKD

32 data points across 24 retailers

24 retailersHK$2,605 HKD to HK$20,203 HKD

A+
Cheapest Retailer
-
HK$2,605 HKD
$332 USD
A
Retailer 2
-
HK$3,021 HKD
$385 USD
View
A
Retailer 3
-
HK$3,107 HKD
$396 USD
View
Final sale: no returns
A
Retailer 4
-
HK$3,232 HKD
$412 USD
View
A
Retailer 5
-
HK$3,716 HKD
View
A
Retailer 6
-
HK$4,080 HKD
$520 USD
View
A
Retailer 7
-
HK$4,551 HKD
$580 USD
View
A
Retailer 8
-
HK$5,248 HKD
€637 EUR
View
A
Retailer 9
-
HK$5,264 HKD
$671 USD
View
A
Retailer 10
-
HK$5,551 HKD
ZAR 11,431 ZAR
View
A
Retailer 11
-
HK$5,785 HKD
£581 GBP
View
A
Retailer 12
-
HK$7,317 HKD
$933 USD
View
A
Retailer 13
-
HK$7,532 HKD
A$1,477 AUD
View
A
Retailer 14
-
HK$8,568 HKD
$1,092 USD
View
B+
Retailer 15
-
HK$9,478 HKD
$1,208 USD
View
B+
Retailer 16
-
HK$10,388 HKD
$1,324 USD
View
B+
Retailer 17
-
HK$10,730 HKD
$1,368 USD
View
B+
Retailer 18
-
HK$10,804 HKD
$1,377 USD
View
B+
Retailer 19
-
HK$10,810 HKD
SGD 1,862 SGD
View
B+
Retailer 20
-
HK$12,208 HKD
$1,556 USD
View
B+
Retailer 21
-
HK$12,672 HKD
$1,615 USD
View
B+
Retailer 22
-
HK$12,943 HKD
£1,299 GBP
View
Retailer 23
-
HK$13,407 HKD
A$2,629 AUD
View
Price last confirmed 24 days ago
Most Expensive
B
Rare Carat
2186-12-614 · Oct 28
HK$20,203 HKD
$2,575 USD
View
23 more retailers have this diamond
Prices start from HK$2,605 HKDSave up to HK$17,598 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+
1.57ct Radiant
HK$2,605 HKD