Round|Lab Grown|IGI

4.27ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG828680589

Certificate IGI LG828680589

Diamond specifications and retailer prices

From $3,894 USD
Save $8,592 USD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $12,486 USD at With Clarity
View at With Clarity

About this 4.27ct lab-grown round diamond

This 4.27ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828680589 or 828680589. Listed at 10 retailers, with prices from $3,894 to $12,486 at With Clarity, a $8,592 spread on the same certified stone. 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

4.27
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828680589
Dimensions10.42 × 10.37 × 6.45 mm
L/W Ratio1.00
Girdle conditionFaceted
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
10.42 mm10.37 mm4.27 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828680589
Side View
Table 56.0%Crown 35.3°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $10,026 USD|Low: $3,894 USD|High: $12,486 USD|Avg: $7,607 USD|-10.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 1, 2026
Retailer 8$3,894 USD
Retailer 5$3,942 USD
Retailer 6$4,329 USD
Retailer 2$8,246 USD
Retailer 7$8,455 USD
Retailer 4$8,768 USD
Retailer 1$10,026 USD
Retailer 3$11,461 USD
With Clarity$12,486 USD

4 data points across 9 retailers

10 retailers$3,894 USD to $12,486 USD

B+
Cheapest Retailer
-
$3,894 USD
B+
Retailer 2
-
$3,942 USD
HK$30,800 HKD
View
B+
Retailer 3
-
$4,339 USD
£3,416 GBP
View
B
Retailer 4
-
$8,246 USD
£6,493 GBP
View
B
Retailer 5
-
$8,455 USD
View
B
Retailer 6
-
$8,540 USD
View
B
Retailer 7
-
$8,768 USD
View
B
Retailer 8
-
$10,026 USD
View
C
Retailer 9
-
$11,461 USD
A$17,633 AUD
View
Most Expensive
C
With Clarity
828680589 · Sep 30
$12,486 USD
View
9 more retailers have this diamond
Prices start from $3,894 USDSave up to $8,592 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.

B+
4.27ct Round
$3,894 USD