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Radiant|Lab Grown|IGI

1.91ct E IF Radiant Lab Grown Diamond

VG • E/IF • IGI LG712553185

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

Certificate IGI LG712553185

Diamond specifications and retailer prices

From $652 AUD
$458 USD
As of October 30, 2026
Save $6,479 AUD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $7,131 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.91ct lab-grown radiant diamond

This 1.91ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG712553185 or 712553185. Listed at 24 retailers as of October 29, 2026, with prices from $652 to $7,131, a $6,479 spread on the same certified stone. Brilliant Earth lists it at $7,131. 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

1.91
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712553185
Dimensions9.46 × 6.11 × 3.81 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.46 mm6.11 mm1.91 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712553185
Side View
Table 58.0%Crown 38.9°Girdle: MediumPavilion 30.9°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
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: $7,131 AUD|Low: $652 AUD|High: $7,345 AUD|Avg: $2,330 AUD|-2.9%
Brilliant Earth
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 15
Retailer 16
Retailer 17
Retailer 18
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Retailer 21
October 30, 2026
Retailer 3$652 AUD
Retailer 9$729 AUD
Retailer 21$729 AUD
Retailer 4$807 AUD
Retailer 16$1,011 AUD
Retailer 18$1,223 AUD
Retailer 7$1,274 AUD
Retailer 20$1,302 AUD
Retailer 2$1,337 AUD
Retailer 15$1,460 AUD
Retailer 19$1,879 AUD
Retailer 8$2,290 AUD
Retailer 11$2,566 AUD
Retailer 6$2,596 AUD
Retailer 12$2,641 AUD
Retailer 14$2,819 AUD
Retailer 10$2,869 AUD
Retailer 13$2,983 AUD
Retailer 5$3,022 AUD
Retailer 17$4,256 AUD
Brilliant Earth$7,131 AUD

35 data points across 21 retailers

24 retailers$652 AUD to $7,131 AUD

A
Cheapest Retailer
-
$652 AUD
$458 USD
A
Retailer 2
-
$729 AUD
$512 USD
View
Final sale: no returns
A
Retailer 3
-
$729 AUD
$512 USD
View
Retailer 4
-
$807 AUD
$567 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$807 AUD
$567 USD
View
A
Retailer 6
-
$1,011 AUD
$710 USD
View
A
Retailer 7
-
$1,223 AUD
€818 EUR
View
A
Retailer 8
-
$1,274 AUD
$895 USD
View
A
Retailer 9
-
$1,302 AUD
$915 USD
View
A
Retailer 10
-
$1,337 AUD
£740 GBP
View
A
Retailer 11
-
$1,460 AUD
View
B+
Retailer 12
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$1,879 AUD
$1,320 USD
View
B+
Retailer 13
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$2,290 AUD
$1,609 USD
View
B+
Retailer 14
-
$2,566 AUD
SGD 2,436 SGD
View
B+
Retailer 15
-
$2,596 AUD
$1,824 USD
View
B+
Retailer 16
-
$2,641 AUD
$1,855 USD
View
B+
Retailer 17
-
$2,700 AUD
$1,897 USD
View
Retailer 18
-
$2,819 AUD
View
Price last confirmed 25 days ago
B
Retailer 19
-
$2,869 AUD
$2,016 USD
View
B
Retailer 20
-
$2,983 AUD
£1,650 GBP
View
B
Retailer 21
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$3,022 AUD
$2,123 USD
View
Retailer 22
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$4,194 AUD
$2,947 USD
View
Price last confirmed 37 days ago
Retailer 23
-
$4,256 AUD
$2,990 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
15446547A · Oct 29
$7,131 AUD
$5,010 USD
View
23 more retailers have this diamond
Prices start from $652 AUDSave up to $6,479 AUD

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
1.91ct Radiant
$652 AUD