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Oval|Lab Grown|IGI

16.35ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG597377007

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG597377007

Diamond specifications and retailer prices

From £2,847 GBP
As of October 27, 2026
Save £16,139 GBP (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £18,987 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 16.35ct lab-grown oval diamond

This 16.35ct lab-grown oval sits in the over five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG597377007 or 597377007. Listed at 10 retailers as of October 27, 2026, with prices from £2,847 to £18,987, a £16,139 spread on the same certified stone. Do Amore Diamonds lists it at £18,987. 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

16.35
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG597377007
Dimensions20.39 × 14.30 × 9.01 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
20.39 mm14.30 mm16.35 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG597377007
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.0%

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 27
Current: £18,987 GBP|Low: £2,847 GBP|High: £51,636 GBP|Avg: £14,023 GBP
Do Amore 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
October 31, 2026
Retailer 10£2,847 GBP
Retailer 2£3,947 GBP
Retailer 4£4,929 GBP
Retailer 5£5,054 GBP
Retailer 11£5,131 GBP
Retailer 8£5,172 GBP
Retailer 9£5,236 GBP
Retailer 15£6,571 GBP
Retailer 14£8,794 GBP
Retailer 3£9,538 GBP
Retailer 12£9,608 GBP
Retailer 13£17,376 GBP
Do Amore Diamonds£18,987 GBP
Retailer 7£29,629 GBP
Retailer 6£51,636 GBP

8 data points across 15 retailers

10 retailers£2,847 GBP to £18,987 GBP

A
Cheapest Retailer
-
£2,847 GBP
A
Retailer 2
-
£3,947 GBP
$5,289 USD
View
B+
Retailer 3
-
£5,131 GBP
$6,875 USD
View
B+
Retailer 4
-
£5,172 GBP
$6,930 USD
View
B+
Retailer 5
-
£5,236 GBP
$7,015 USD
View
B+
Retailer 6
-
£8,794 GBP
$11,783 USD
View
B+
Retailer 7
-
£9,608 GBP
$12,874 USD
View
B
Retailer 8
-
£14,576 GBP
$19,530 USD
View
B
Retailer 9
-
£17,376 GBP
$23,282 USD
View
Most Expensive
B
Do Amore Diamonds
27-454D20B42 · Oct 29
£18,987 GBP
$25,440 USD
View
9 more retailers have this diamond
Prices start from £2,847 GBPSave up to £16,139 GBP

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
16.35ct Oval
£2,847 GBP