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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 $464 CAD
$332 USD
As of October 30, 2026
Save $3,133 CAD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,597 CAD 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 $464 to $3,597, a $3,133 spread on the same certified stone. Rare Carat lists it at $3,597. 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
Color
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

How it works →
A+
Exceptional
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: Oct 30
Current: $3,597 CAD|Low: $446 CAD|High: $3,611 CAD|Avg: $1,450 CAD|-0.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 24
October 30, 2026
Retailer 24$464 CAD
Retailer 21$538 CAD
Retailer 19$553 CAD
Retailer 23$576 CAD
Retailer 14$662 CAD
Retailer 5$789 CAD
Retailer 7$810 CAD
Retailer 22$930 CAD
Retailer 11$937 CAD
Retailer 18$988 CAD
Retailer 2$1,030 CAD
Retailer 12$1,303 CAD
Retailer 13$1,341 CAD
Retailer 8$1,525 CAD
Retailer 4$1,687 CAD
Retailer 3$1,849 CAD
Retailer 15$1,910 CAD
Retailer 17$1,924 CAD
Retailer 16$1,925 CAD
Retailer 10$2,174 CAD
Retailer 9$2,256 CAD
Retailer 20$2,308 CAD
Retailer 6$2,387 CAD
Rare Carat$3,597 CAD

32 data points across 24 retailers

24 retailers$464 CAD to $3,597 CAD

A+
Cheapest Retailer
-
$464 CAD
$332 USD
A
Retailer 2
-
$538 CAD
$385 USD
View
A
Retailer 3
-
$553 CAD
$396 USD
View
Final sale: no returns
A
Retailer 4
-
$576 CAD
$412 USD
View
A
Retailer 5
-
$662 CAD
HK$3,700 HKD
View
A
Retailer 6
-
$789 CAD
$565 USD
View
A
Retailer 7
-
$810 CAD
$580 USD
View
Retailer 8
-
$930 CAD
€634 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
$937 CAD
$671 USD
View
A
Retailer 10
-
$988 CAD
ZAR 11,431 ZAR
View
A
Retailer 11
-
$1,030 CAD
£581 GBP
View
A
Retailer 12
-
$1,303 CAD
$933 USD
View
A
Retailer 13
-
$1,341 CAD
A$1,477 AUD
View
A
Retailer 14
-
$1,525 CAD
$1,092 USD
View
B+
Retailer 15
-
$1,687 CAD
$1,208 USD
View
B+
Retailer 16
-
$1,849 CAD
$1,324 USD
View
B+
Retailer 17
-
$1,910 CAD
$1,368 USD
View
B+
Retailer 18
-
$1,924 CAD
$1,377 USD
View
B+
Retailer 19
-
$1,925 CAD
SGD 1,862 SGD
View
B+
Retailer 20
-
$2,174 CAD
$1,556 USD
View
B+
Retailer 21
-
$2,256 CAD
$1,615 USD
View
B+
Retailer 22
-
$2,308 CAD
£1,301 GBP
View
Retailer 23
-
$2,387 CAD
A$2,629 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
Rare Carat
2186-12-614 · Oct 28
$3,597 CAD
$2,575 USD
View
23 more retailers have this diamond
Prices start from $464 CADSave up to $3,133 CAD

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
$464 CAD