CaratHunter
Plans
Radiant|Lab Grown|IGI

1.64ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG700511937

Certificate IGI LG700511937

Diamond specifications and retailer prices

From $368 USD
Save $4,532 USD (92%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $4,900 USD at Brilliant Earth
View at Brilliant Earth

About this 1.64ct lab-grown radiant diamond

This 1.64ct 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 LG700511937 or 700511937. Listed at 26 retailers, with prices from $368 to $4,900 at Brilliant Earth, a $4,532 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700511937
Dimensions8.70 × 5.82 × 3.78 mm
L/W Ratio1.49
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
8.70 mm5.82 mm1.64 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700511937
Side View
Table 60.0%Crown 41°Girdle: MediumPavilion 31.2°Culet: NoneDepth 64.9%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $4,900 USD|Low: $293 USD|High: $4,900 USD|Avg: $1,404 USD
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 1, 2026
Retailer 18$445 USD
Retailer 16$525 USD
Retailer 13$526 USD
Retailer 17$580 USD
Retailer 7$714 USD
Retailer 5$721 USD
Retailer 4$767 USD
Retailer 19$812 USD
Retailer 11$1,046 USD
Retailer 3$1,058 USD
Retailer 9$1,192 USD
Retailer 20$1,225 USD
Retailer 12$1,505 USD
Retailer 6$1,530 USD
Retailer 15$1,646 USD
Retailer 14$1,728 USD
Retailer 2$1,802 USD
Retailer 21$1,802 USD
Retailer 8$1,868 USD
Retailer 10$2,019 USD
Retailer 22$2,960 USD
Brilliant Earth$4,900 USD

38 data points across 22 retailers

26 retailers$368 USD to $4,900 USD

A
Cheapest Retailer
-
$368 USD
A
Retailer 2
-
$426 USD
View
A
Retailer 3
-
$445 USD
View
A
Retailer 4
-
$450 USD
View
A
Retailer 5
-
$525 USD
HK$4,100 HKD
View
A
Retailer 6
-
$526 USD
View
A
Retailer 7
-
$580 USD
View
A
Retailer 8
-
$714 USD
View
A
Retailer 9
-
$721 USD
€687 EUR
View
A
Retailer 10
-
$767 USD
ZAR 12,392 ZAR
View
A
Retailer 11
-
$814 USD
£641 GBP
View
A
Retailer 12
-
$1,046 USD
View
A
Retailer 13
-
$1,058 USD
A$1,628 AUD
View
A
Retailer 14
-
$1,192 USD
View
A
Retailer 15
-
$1,225 USD
View
B+
Retailer 16
-
$1,465 USD
View
B+
Retailer 17
-
$1,505 USD
View
B+
Retailer 18
-
$1,530 USD
SGD 2,067 SGD
View
B+
Retailer 19
-
$1,646 USD
£1,296 GBP
View
Price last confirmed 22 days ago
B+
Retailer 20
-
$1,728 USD
View
B+
Retailer 21
-
$1,802 USD
A$2,772 AUD
View
B+
Retailer 22
-
$1,802 USD
£1,419 GBP
View
B+
Retailer 23
-
$1,868 USD
View
B+
Retailer 24
-
$2,060 USD
View
B
Retailer 25
-
$2,960 USD
View
Most Expensive
B
Brilliant Earth
14847337A · Sep 29
$4,900 USD
View
25 more retailers have this diamond
Prices start from $368 USDSave up to $4,532 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
1.64ct Radiant
$368 USD