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Round|Lab Grown|IGI

5.21ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG595367198

Shape and cutting style on the report: Round brilliant

Certificate IGI LG595367198

Diamond specifications and retailer prices

From $20,102 SGD
$15,724 USD
As of October 29, 2026
Save $39,331 SGD (66%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $59,433 SGD at Brilliance · As of October 30, 2026
View at Brilliance

About this 5.21ct lab-grown round diamond

This 5.21ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG595367198 or 595367198. Listed at 14 retailers as of October 29, 2026, with prices from $20,102 to $59,433, a $39,331 spread on the same certified stone. Brilliance lists it at $59,433. 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
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG595367198
Dimensions11.34 × 11.37 × 6.72 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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
11.34 mm11.37 mm5.21 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG595367198
Side View
Table 59.0%Crown 32.8°GirdlePavilion 40.9°Culet: NoneDepth 59.2%

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: $59,433 SGD|Low: $16,080 SGD|High: $59,433 SGD|Avg: $35,165 SGD|+25.8%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9$20,585 SGD
Retailer 10$22,514 SGD
Retailer 8$23,069 SGD
Retailer 7$23,649 SGD
Retailer 11$23,695 SGD
Retailer 4$26,271 SGD
Retailer 5$36,824 SGD
Retailer 2$47,380 SGD
Retailer 6$47,966 SGD
Retailer 3$58,363 SGD
Brilliance$59,433 SGD

39 data points across 11 retailers

14 retailers$20,102 SGD to $59,433 SGD

A
Cheapest Retailer
-
$20,102 SGD
$15,724 USD
B+
Retailer 2
-
$20,585 SGD
$16,102 USD
View
B+
Retailer 3
-
$21,854 SGD
$17,095 USD
View
B+
Retailer 4
-
$22,514 SGD
$17,611 USD
View
Final sale: no returns
B+
Retailer 5
-
$23,069 SGD
$18,045 USD
View
B+
Retailer 6
-
$23,318 SGD
$18,240 USD
View
Retailer 7
-
$23,318 SGD
$18,240 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$23,649 SGD
$18,499 USD
View
B+
Retailer 9
-
$26,271 SGD
£16,181 GBP
View
B+
Retailer 10
-
$36,824 SGD
£22,681 GBP
View
B
Retailer 11
-
$47,380 SGD
ZAR 598,736 ZAR
View
Retailer 12
-
$47,966 SGD
A$57,723 AUD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$58,363 SGD
$45,653 USD
View
Most Expensive
B
Brilliance
D22536311 · Oct 30
$59,433 SGD
$46,490 USD
View
13 more retailers have this diamond
Prices start from $20,102 SGDSave up to $39,331 SGD

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
$20,102 SGD