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Round|Lab Grown|IGI

5.21ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG614331970

Shape and cutting style on the report: Round brilliant

Certificate IGI LG614331970

Diamond specifications and retailer prices

From $6,830 USD
£5,378 GBP
As of October 30, 2026
Save $37,790 USD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $44,620 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG614331970 or 614331970. Listed at 24 retailers as of October 30, 2026, with prices from $6,830 to $44,620, a $37,790 spread on the same certified stone. Do Amore Diamonds lists it at $44,620. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614331970
Dimensions11.17 × 11.21 × 6.77 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
11.17 mm11.21 mm5.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614331970
Side View
Table 59.0%Crown 33.6°Girdle: MediumPavilion 41°Culet: NoneDepth 60.5%

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: $28,060 USD|Low: $6,807 USD|High: $67,514 USD|Avg: $17,948 USD|-10.2%
Retailer 1
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
October 30, 2026
Retailer 9$6,830 USD
Retailer 16$7,151 USD
Retailer 8$7,485 USD
Retailer 15$8,250 USD
Retailer 2$8,295 USD
Retailer 5$8,295 USD
Retailer 14$9,379 USD
Retailer 3$9,610 USD
Retailer 10$11,241 USD
Retailer 12$17,089 USD
Retailer 11$18,604 USD
Retailer 13$19,082 USD
Retailer 4$21,243 USD
Retailer 6$26,486 USD
Retailer 1$28,060 USD
Retailer 7$67,514 USD

39 data points across 16 retailers

24 retailers$6,830 USD to $44,620 USD

A
Cheapest Retailer
-
$6,830 USD
£5,378 GBP
A
Retailer 2
-
$7,151 USD
View
A
Retailer 3
-
$7,437 USD
View
A
Retailer 4
-
$7,485 USD
View
A
Retailer 5
-
$8,008 USD
View
Final sale: no returns
A
Retailer 6
-
$8,065 USD
View
A
Retailer 7
-
$8,250 USD
View
A
Retailer 8
-
$8,295 USD
View
Retailer 9
-
$8,295 USD
View
Price last confirmed 17 days ago
A
Retailer 10
-
$9,379 USD
View
A
Retailer 11
-
$9,610 USD
View
A
Retailer 12
-
$10,298 USD
View
A
Retailer 13
-
$11,241 USD
£8,852 GBP
View
B+
Retailer 14
-
$17,089 USD
£13,456 GBP
View
B+
Retailer 15
-
$18,604 USD
ZAR 300,544 ZAR
View
Retailer 16
-
$19,082 USD
A$29,357 AUD
View
Price last confirmed 11 days ago
B+
Retailer 17
-
$21,243 USD
View
B+
Retailer 18
-
$22,830 USD
View
B+
Retailer 19
-
$26,486 USD
View
B
Retailer 20
-
$27,509 USD
View
B+
Retailer 21
-
$28,060 USD
View
B
Retailer 22
-
$29,920 USD
View
Most Expensive
B
Do Amore Diamonds
27-26C5CC12B · Oct 30
$44,620 USD
View
22 more retailers have this diamond
Prices start from $6,830 USDSave up to $37,790 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
$6,830 USD