CaratHunter
Plans
Round|Lab Grown|IGI

0.51ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG631402600

Certificate IGI LG631402600

Diamond specifications and retailer prices

From $299 USD
₹28,521 INR
As of October 29, 2026
Save $362 USD (55%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $662 USD at Yorxs · As of October 28, 2026
View at Yorxs

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG631402600 or 631402600. Listed at 2 retailers as of October 28, 2026, with prices from $299 to $662, a $362 spread on the same certified stone. Yorxs lists it at $662. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG631402600
Dimensions5.10 × 5.13 × 3.15 mm
L/W Ratio1.01
Top View
5.10 mm5.13 mm0.51 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631402600
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 61.5%

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: $299 USD|Low: $297 USD|High: $662 USD|Avg: $488 USD|-0.9%
Retailer 1
Retailer 2
Yorxs
October 29, 2026
Retailer 1$299 USD
Retailer 2$549 USD
Yorxs$662 USD

41 data points across 3 retailers

2 retailers$299 USD to $662 USD

A
Cheapest Retailer
-
$299 USD
₹28,521 INR
Most Expensive
B
Yorxs
RG-4014 · Oct 28
$662 USD
€630 EUR
View
1 more retailer has this diamond
Prices start from $299 USDSave up to $362 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
0.51ct Round
$299 USD