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Round|Lab Grown|IGI

3.67ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG819655549

Shape and cutting style on the report: Round brilliant

Certificate IGI LG819655549

Diamond specifications and retailer prices

From $669 NZD
$377 USD
As of November 1, 2026
Save $3,856 NZD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,524 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.67ct lab-grown round diamond

This 3.67ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG819655549 or 819655549. Listed at 11 retailers as of October 31, 2026, with prices from $669 to $4,524, a $3,856 spread on the same certified stone. Brilliant Earth lists it at $4,524. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.67
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819655549
Dimensions9.77 × 9.90 × 6.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.77 mm9.90 mm3.67 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819655549
Side View
Table 61.0%Crown 33.2°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 61.8%

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: Nov 1
Current: $4,524 NZD|Low: $662 NZD|High: $8,481 NZD|Avg: $2,556 NZD|-46.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$669 NZD
Retailer 8$749 NZD
Retailer 2$1,154 NZD
Retailer 4$1,332 NZD
Retailer 9$1,551 NZD
Retailer 7$2,326 NZD
Retailer 6$2,333 NZD
Retailer 10$2,667 NZD
Retailer 5$3,258 NZD
Retailer 11$3,364 NZD
Brilliant Earth$4,524 NZD

35 data points across 11 retailers

11 retailers$669 NZD to $4,524 NZD

A
Cheapest Retailer
-
$669 NZD
$377 USD
A
Retailer 2
-
$749 NZD
$422 USD
View
A
Retailer 3
-
$1,154 NZD
£512 GBP
View
A
Retailer 4
-
$1,332 NZD
€715 EUR
View
B+
Retailer 5
-
$1,551 NZD
$874 USD
View
B+
Retailer 6
-
$2,326 NZD
$1,311 USD
View
B+
Retailer 7
-
$2,333 NZD
$1,315 USD
View
B+
Retailer 8
-
$2,667 NZD
$1,503 USD
View
B+
Retailer 9
-
$3,258 NZD
£1,446 GBP
View
Retailer 10
-
$3,364 NZD
SGD 2,562 SGD
View
Price last confirmed 20 days ago
Most Expensive
B
Brilliant Earth
20802618A · Oct 31
$4,524 NZD
$2,550 USD
View
10 more retailers have this diamond
Prices start from $669 NZDSave up to $3,856 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
3.67ct Round
$669 NZD