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Round|Lab Grown|IGI

5.21ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG790611705

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790611705

Diamond specifications and retailer prices

From $6,121 USD
As of October 29, 2026
Save $18,604 USD (75%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $24,725 USD at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 5.21ct lab-grown round diamond

This 5.21ct lab-grown round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790611705 or 790611705. Listed at 23 retailers as of October 29, 2026, with prices from $6,121 to $24,725, a $18,604 spread on the same certified stone. Michael Trio lists it at $24,725. 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

5.21
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611705
Dimensions11.03 × 11.10 × 6.84 mm
L/W Ratio1.01
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
11.03 mm11.10 mm5.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611705
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.8°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: Oct 29
Current: $24,725 USD|Low: $6,121 USD|High: $34,350 USD|Avg: $12,817 USD|-10.1%
Michael Trio
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October 31, 2026
Retailer 7$6,121 USD
Retailer 15$6,414 USD
Retailer 9$6,493 USD
Retailer 11$6,854 USD
Retailer 16$7,085 USD
Retailer 6$7,100 USD
Retailer 12$7,100 USD
Retailer 14$8,428 USD
Retailer 21$8,442 USD
Retailer 22$8,538 USD
Retailer 20$8,850 USD
Retailer 13$8,860 USD
Retailer 8$10,315 USD
Retailer 3$10,955 USD
Retailer 2$11,698 USD
Retailer 5$13,323 USD
Retailer 18$14,425 USD
Retailer 19$14,525 USD
Retailer 4$19,754 USD
Retailer 17$20,100 USD
Retailer 10$24,699 USD
Michael Trio$24,725 USD

41 data points across 22 retailers

23 retailers$6,121 USD to $24,725 USD

A
Cheapest Retailer
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$6,121 USD
A
Retailer 2
-
$6,414 USD
View
A
Retailer 3
-
$6,493 USD
View
A
Retailer 4
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$6,854 USD
View
Final sale: no returns
A
Retailer 5
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$7,085 USD
View
A
Retailer 6
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$7,100 USD
View
Retailer 7
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$7,100 USD
View
Price last confirmed 15 days ago
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Retailer 8
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$8,428 USD
View
A
Retailer 9
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$8,442 USD
View
A
Retailer 10
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$8,538 USD
HK$66,700 HKD
View
Retailer 11
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$8,850 USD
View
Price last confirmed 13 days ago
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Retailer 12
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$8,860 USD
£6,977 GBP
View
A
Retailer 13
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$10,315 USD
View
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Retailer 14
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$10,955 USD
View
A
Retailer 15
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$11,698 USD
€11,141 EUR
View
A
Retailer 16
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$12,759 USD
View
A
Retailer 17
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$13,323 USD
View
A
Retailer 18
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$14,425 USD
ZAR 233,030 ZAR
View
A
Retailer 19
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$14,525 USD
£11,437 GBP
View
B+
Retailer 20
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$19,754 USD
View
B+
Retailer 21
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$20,100 USD
View
B
Retailer 22
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$24,699 USD
View
Most Expensive
B
Michael Trio
8155789340 · Oct 31
$24,725 USD
SGD 33,412 SGD
View
22 more retailers have this diamond
Prices start from $6,121 USDSave up to $18,604 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
5.21ct Round
$6,121 USD