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Round|Lab Grown|IGI

5.91ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG628409481

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628409481

Diamond specifications and retailer prices

From $8,086 USD
As of November 1, 2026
Save $42,374 USD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $50,460 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.91ct lab-grown round diamond

This 5.91ct lab-grown round sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628409481 or 628409481. Listed at 23 retailers as of October 31, 2026, with prices from $8,086 to $50,460, a $42,374 spread on the same certified stone. Do Amore Diamonds lists it at $50,460. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.91
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628409481
Dimensions11.53 × 11.57 × 7.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
11.53 mm11.57 mm5.91 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628409481
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.8%

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: Nov 1
Current: $21,476 USD|Low: $7,763 USD|High: $86,827 USD|Avg: $20,217 USD|-0.2%
Retailer 1
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
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Retailer 18
November 1, 2026
Retailer 17$8,086 USD
Retailer 7$8,410 USD
Retailer 6$8,426 USD
Retailer 9$9,057 USD
Retailer 13$9,305 USD
Retailer 2$9,380 USD
Retailer 16$10,434 USD
Retailer 3$10,857 USD
Retailer 8$11,644 USD
Retailer 12$12,448 USD
Retailer 11$18,851 USD
Retailer 15$21,037 USD
Retailer 1$21,476 USD
Retailer 14$22,070 USD
Retailer 18$24,020 USD
Retailer 4$30,002 USD
Retailer 10$31,205 USD
Retailer 5$86,827 USD

43 data points across 18 retailers

23 retailers$8,086 USD to $50,460 USD

A
Cheapest Retailer
-
$8,086 USD
A
Retailer 2
-
$8,410 USD
View
A
Retailer 3
-
$8,426 USD
View
A
Retailer 4
-
$9,057 USD
View
Final sale: no returns
A
Retailer 5
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$9,305 USD
View
A
Retailer 6
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$9,380 USD
View
Retailer 7
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$9,380 USD
View
Price last confirmed 17 days ago
A
Retailer 8
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$10,020 USD
View
A
Retailer 9
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$10,434 USD
View
A
Retailer 10
-
$10,857 USD
View
A
Retailer 11
-
$11,644 USD
View
A
Retailer 12
-
$12,448 USD
£9,802 GBP
View
B+
Retailer 13
-
$18,851 USD
£14,843 GBP
View
B+
Retailer 14
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$21,037 USD
ZAR 339,853 ZAR
View
B+
Retailer 15
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$21,476 USD
A$33,040 AUD
View
B+
Retailer 16
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$22,070 USD
View
B+
Retailer 17
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$24,020 USD
View
B+
Retailer 18
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$25,815 USD
View
B+
Retailer 19
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$30,002 USD
View
B
Retailer 20
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$31,205 USD
View
B
Retailer 21
-
$32,674 USD
View
Most Expensive
B
Do Amore Diamonds
27-825226D7B · Oct 31
$50,460 USD
View
21 more retailers have this diamond
Prices start from $8,086 USDSave up to $42,374 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
5.91ct Round
$8,086 USD