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Oval|Lab Grown|GIA

1.37ct E SI1 Oval Lab Grown Diamond

GD • E/SI1 • GIA 2458384687

Certificate GIA 2458384687

Diamond specifications and retailer prices

From $619 NZD
As of November 6, 2026
Save $350 NZD (36%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,440 NZD at Rare Carat · As of August 9, 2026
View at Rare Carat

About this 1.37ct lab-grown oval diamond

This 1.37ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2458384687. Listed at 5 retailers as of November 6, 2026, with a 57% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.37
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2458384687
Dimensions8.88 × 6.28 × 3.95 mm
L/W Ratio1.41
Top View
8.88 mm6.28 mm1.37 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2458384687
Side View
Table 60.0%CrownGirdle: VTK-MEDPavilionCulet: NoneDepth 62.9%

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 6
Current: $1,440 NZD|Low: $619 NZD|High: $3,074 NZD|Avg: $1,315 NZD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 14, 2026
Retailer 4$619 NZD
Retailer 5$869 NZD
Retailer 2$875 NZD
Retailer 3$969 NZD
Rare Carat$1,440 NZD
Retailer 6$3,074 NZD

4 data points across 6 retailers

5 retailers$619 NZD to $969 NZD

A
Cheapest Retailer
-
$619 NZD
Final sale: no returns
B+
Retailer 2
-
$869 NZD
View
B+
Retailer 3
-
$875 NZD
View
B
Retailer 4
-
$969 NZD
View
Most Expensive
Rare Carat
SLD10-635 · Aug 9
$1,440 NZD
$798 USD
View
Price last confirmed 88 days ago
4 more retailers have this diamond
Prices start from $619 NZDSave up to $350 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
1.37ct Oval
$619 NZD