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Radiant|Lab Grown|IGI

1.70ct G IF Radiant Lab Grown Diamond

ID • G/IF • IGI LG581327872

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

Certificate IGI LG581327872

Diamond specifications and retailer prices

From $322 USD
As of October 27, 2026
Save $2,808 USD (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,130 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.7ct lab-grown radiant diamond

This 1.7ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG581327872 or 581327872. Listed at 18 retailers as of October 27, 2026, with prices from $322 to $3,130, a $2,808 spread on the same certified stone. Brilliant Earth lists it at $3,130. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581327872
Dimensions8.12 × 5.99 × 4.08 mm
L/W Ratio1.36
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 Faint Blue
Top View
8.12 mm5.99 mm1.70 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581327872
Side View
Table 63.0%Crown 44.2°Girdle: MediumPavilion 36.3°Culet: NoneDepth 68.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $3,130 USD|Low: $309 USD|High: $3,230 USD|Avg: $1,014 USD|-3.1%
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
October 29, 2026
Retailer 16$322 USD
Retailer 5$360 USD
Retailer 3$399 USD
Retailer 15$538 USD
Retailer 12$555 USD
Retailer 6$664 USD
Retailer 13$673 USD
Retailer 10$685 USD
Retailer 11$708 USD
Retailer 9$930 USD
Retailer 14$955 USD
Retailer 7$1,143 USD
Retailer 8$1,327 USD
Retailer 4$1,534 USD
Retailer 2$1,608 USD
Brilliant Earth$3,130 USD

45 data points across 16 retailers

18 retailers$322 USD to $3,130 USD

A
Cheapest Retailer
-
$322 USD
A
Retailer 2
-
$360 USD
View
Final sale: no returns
A
Retailer 3
-
$373 USD
View
A
Retailer 4
-
$399 USD
View
A
Retailer 5
-
$399 USD
View
A
Retailer 6
-
$538 USD
View
A
Retailer 7
-
$555 USD
View
A
Retailer 8
-
$664 USD
View
A
Retailer 9
-
$685 USD
ZAR 11,074 ZAR
View
A
Retailer 10
-
$708 USD
£558 GBP
View
A
Retailer 11
-
$930 USD
A$1,431 AUD
View
B+
Retailer 12
-
$955 USD
View
B+
Retailer 13
-
$1,143 USD
View
B+
Retailer 14
-
$1,282 USD
View
B+
Retailer 15
-
$1,327 USD
View
B
Retailer 16
-
$1,534 USD
View
B+
Retailer 17
-
$1,608 USD
£1,266 GBP
View
Most Expensive
B
Brilliant Earth
21312144A · Oct 28
$3,130 USD
View
17 more retailers have this diamond
Prices start from $322 USDSave up to $2,808 USD

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
1.70ct Radiant
$322 USD