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3.88ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG645498338

Shape and cutting style on the report: Round brilliant

Certificate IGI LG645498338

Diamond specifications and retailer prices

From $738 NZD
$416 USD
As of October 31, 2026
Save $2,566 NZD (78%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,304 NZD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.88ct lab-grown round diamond

This 3.88ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG645498338 or 645498338. Listed at 3 retailers as of October 31, 2026, with prices from $738 to $3,304, a $2,566 spread on the same certified stone. The Diamond Guys lists it at $3,304. 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

3.88
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645498338
Dimensions10.08 × 10.03 × 6.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.08 mm10.03 mm3.88 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645498338
Side View
Table 55.0%Crown 34.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

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 31
Current: $738 NZD|Low: $562 NZD|High: $9,581 NZD|Avg: $2,648 NZD|+31.2%
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
The Diamond Guys
October 27, 2026
Retailer 1$738 NZD
Retailer 7$873 NZD
Retailer 10$1,163 NZD
Retailer 11$1,343 NZD
Retailer 9$1,363 NZD
Retailer 8$1,421 NZD
Retailer 13$1,473 NZD
Retailer 2$2,073 NZD
Retailer 14$2,243 NZD
Retailer 12$2,287 NZD
Retailer 5$2,499 NZD
The Diamond Guys$3,304 NZD
Retailer 3$4,221 NZD
Retailer 6$5,128 NZD
Retailer 4$9,581 NZD

9 data points across 15 retailers

3 retailers$738 NZD to $3,304 NZD

A
Cheapest Retailer
-
$738 NZD
$416 USD
Final sale: no returns
B+
Retailer 2
-
$2,499 NZD
CA$1,956 CAD
View
Most Expensive
B
The Diamond Guys
1954434257 · Nov 1
$3,304 NZD
$1,862 USD
View
2 more retailers have this diamond
Prices start from $738 NZDSave up to $2,566 NZD

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
3.88ct Round
$738 NZD