Radiant|Lab Grown|IGI

1.56ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG743523446

Certificate IGI LG743523446

Diamond specifications and retailer prices

From $351 USD
Save $2,269 USD (87%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,650 USD at Brilliant Earth
View at Brilliant Earth

About this 1.56ct lab-grown radiant diamond

This 1.56ct 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 very-good cut grade and certified by IGI LG743523446 or 743523446. Listed at 25 retailers, with a 646% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.56
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743523446
Dimensions5.76 × 5.76 × 8.28 mm
L/W Ratio1.00
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
5.76 mm5.76 mm1.56 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743523446
Side View
Table 63.0%Crown 41.6°Girdle: MediumPavilion 35.7°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $4,650 USD|Low: $279 USD|High: $4,660 USD|Avg: $1,311 USD|-0.2%
Brilliant Earth
Retailer 2
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Retailer 19
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Retailer 22
October 1, 2026
Retailer 22$392 USD
Retailer 20$499 USD
Retailer 18$502 USD
Retailer 21$555 USD
Retailer 6$691 USD
Retailer 8$692 USD
Retailer 5$733 USD
Retailer 16$775 USD
Retailer 11$995 USD
Retailer 4$1,010 USD
Retailer 9$1,087 USD
Retailer 19$1,170 USD
Retailer 14$1,441 USD
Retailer 7$1,459 USD
Retailer 2$1,644 USD
Retailer 12$1,676 USD
Retailer 15$1,676 USD
Retailer 17$1,716 USD
Retailer 13$1,721 USD
Retailer 10$1,921 USD
Retailer 3$2,620 USD
Brilliant Earth$4,650 USD

39 data points across 22 retailers

25 retailers$351 USD to $2,620 USD

A
Cheapest Retailer
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$351 USD
A
Retailer 2
-
$392 USD
View
A
Retailer 3
-
$430 USD
View
A
Retailer 4
-
$499 USD
HK$3,900 HKD
View
A
Retailer 5
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$502 USD
View
A
Retailer 6
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$555 USD
View
A
Retailer 7
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$691 USD
€658 EUR
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A
Retailer 8
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$692 USD
View
A
Retailer 9
-
$733 USD
ZAR 11,834 ZAR
View
A
Retailer 10
-
$773 USD
£609 GBP
View
A
Retailer 11
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$775 USD
£610 GBP
View
A
Retailer 12
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$995 USD
View
A
Retailer 13
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$1,010 USD
A$1,554 AUD
View
A
Retailer 14
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$1,087 USD
View
B+
Retailer 15
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$1,170 USD
View
B+
Retailer 16
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$1,399 USD
View
B+
Retailer 17
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$1,441 USD
View
B+
Retailer 18
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$1,459 USD
SGD 1,972 SGD
View
B+
Retailer 19
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$1,644 USD
View
B+
Retailer 20
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$1,676 USD
View
B+
Retailer 21
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$1,716 USD
A$2,640 AUD
View
B+
Retailer 22
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$1,721 USD
£1,355 GBP
View
B
Retailer 23
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$1,960 USD
View
B
Retailer 24
-
$2,620 USD
View
Most Expensive
B
Brilliant Earth
16656089A · Sep 17
$4,650 USD
View
Price last confirmed 14 days ago
24 more retailers have this diamond
Prices start from $351 USDSave up to $2,269 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.

A
1.56ct Radiant
$351 USD