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Oval|Lab Grown|IGI

4.21ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754594340

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754594340

Diamond specifications and retailer prices

From $2,907 SGD
$2,274 USD
As of October 29, 2026
Save $17,403 SGD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $20,310 SGD at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 4.21ct lab-grown oval diamond

This 4.21ct lab-grown oval 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 LG754594340 or 754594340. Listed at 17 retailers as of October 29, 2026, with prices from $2,907 to $20,310, a $17,403 spread on the same certified stone. Novita Diamonds lists it at $20,310. 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

4.21
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594340
Dimensions12.56 × 8.96 × 5.76 mm
L/W Ratio1.40
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
12.56 mm8.96 mm4.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594340
Side View
Table 56.0%Crown 36°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
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: $20,310 SGD|Low: $2,884 SGD|High: $27,230 SGD|Avg: $8,480 SGD|+0.4%
Novita Diamonds
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
Retailer 17
November 1, 2026
Retailer 3$2,907 SGD
Retailer 13$3,163 SGD
Retailer 15$3,448 SGD
Retailer 8$3,564 SGD
Retailer 4$3,580 SGD
Retailer 7$5,116 SGD
Retailer 14$5,167 SGD
Retailer 10$5,263 SGD
Retailer 17$5,473 SGD
Retailer 12$6,050 SGD
Retailer 9$7,352 SGD
Retailer 11$7,973 SGD
Retailer 6$9,232 SGD
Retailer 2$9,965 SGD
Retailer 16$14,523 SGD
Retailer 5$19,994 SGD
Novita Diamonds$20,310 SGD

36 data points across 17 retailers

17 retailers$2,907 SGD to $20,310 SGD

A
Cheapest Retailer
-
$2,907 SGD
$2,274 USD
A
Retailer 2
-
$3,163 SGD
$2,474 USD
View
A
Retailer 3
-
$3,448 SGD
$2,697 USD
View
A
Retailer 4
-
$3,564 SGD
$2,788 USD
View
Final sale: no returns
A
Retailer 5
-
$3,580 SGD
$2,800 USD
View
A
Retailer 6
-
$5,116 SGD
$4,002 USD
View
A
Retailer 7
-
$5,167 SGD
$4,042 USD
View
A
Retailer 8
-
$5,263 SGD
$4,117 USD
View
A
Retailer 9
-
$5,473 SGD
$4,281 USD
View
A
Retailer 10
-
$6,050 SGD
€4,507 EUR
View
Retailer 11
-
$7,352 SGD
$5,751 USD
View
Price last confirmed 83 days ago
B+
Retailer 12
-
$7,973 SGD
A$9,595 AUD
View
B+
Retailer 13
-
$9,232 SGD
$7,222 USD
View
B+
Retailer 14
-
$9,965 SGD
£6,138 GBP
View
B
Retailer 15
-
$14,523 SGD
$11,360 USD
View
B
Retailer 16
-
$19,994 SGD
$15,640 USD
View
Most Expensive
B
Novita Diamonds
cert_754594340 · Nov 1
$20,310 SGD
A$24,442 AUD
View
16 more retailers have this diamond
Prices start from $2,907 SGDSave up to $17,403 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
4.21ct Oval
$2,907 SGD