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Radiant|Lab Grown|IGI

3.91ct D VS1 Radiant Lab Grown Diamond

GD • D/VS1 • IGI LG708563402

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

Certificate IGI LG708563402

Diamond specifications and retailer prices

From $1,149 AUD
$807 USD
As of October 29, 2026
Save $11,023 AUD (91%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,172 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.91ct lab-grown radiant diamond

This 3.91ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG708563402 or 708563402. Listed at 17 retailers as of October 29, 2026, with prices from $1,149 to $12,172, a $11,023 spread on the same certified stone. Brilliant Earth lists it at $12,172. 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

3.91
Carat
D
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG708563402
Dimensions11.00 × 7.89 × 5.26 mm
L/W Ratio1.39
Culet sizePointed
Top View
11.00 mm7.89 mm3.91 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG708563402
Side View
Table 68.0%Crown 39.3°Girdle: MediumPavilion 35.2°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A
Excellent
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 29
Current: $12,172 AUD|Low: $1,149 AUD|High: $12,172 AUD|Avg: $3,710 AUD
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
October 28, 2026
Retailer 6$1,149 AUD
Retailer 3$1,481 AUD
Retailer 2$1,666 AUD
Retailer 7$1,670 AUD
Retailer 14$1,987 AUD
Retailer 5$2,352 AUD
Retailer 15$2,930 AUD
Retailer 12$2,963 AUD
Retailer 9$3,159 AUD
Retailer 4$4,357 AUD
Retailer 11$4,929 AUD
Retailer 13$5,410 AUD
Retailer 10$7,683 AUD
Retailer 8$9,040 AUD
Brilliant Earth$12,172 AUD

24 data points across 15 retailers

17 retailers$1,149 AUD to $12,172 AUD

A
Cheapest Retailer
-
$1,149 AUD
$807 USD
Final sale: no returns
Retailer 2
-
$1,199 AUD
$842 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
$1,481 AUD
$1,040 USD
View
B+
Retailer 4
-
$1,666 AUD
$1,170 USD
View
A
Retailer 5
-
$1,670 AUD
$1,173 USD
View
A
Retailer 6
-
$1,987 AUD
€1,329 EUR
View
B+
Retailer 7
-
$2,352 AUD
$1,652 USD
View
B+
Retailer 8
-
$2,930 AUD
$2,058 USD
View
Retailer 9
-
$2,963 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$3,159 AUD
$2,219 USD
View
Retailer 11
-
$4,357 AUD
View
Price last confirmed 21 days ago
B
Retailer 12
-
$4,929 AUD
£2,726 GBP
View
Retailer 13
-
$5,410 AUD
$3,800 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$7,680 AUD
$5,395 USD
View
B
Retailer 15
-
$7,683 AUD
$5,397 USD
View
B
Retailer 16
-
$9,040 AUD
$6,350 USD
View
Most Expensive
B
Brilliant Earth
16281928A · Oct 29
$12,172 AUD
$8,550 USD
View
16 more retailers have this diamond
Prices start from $1,149 AUDSave up to $11,023 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
3.91ct Radiant
$1,149 AUD